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React Security Vulnerabilities and Best Practices 2025

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React applications power millions of websites and web applications worldwide. However, with great popularity comes great responsibility—React apps are frequent targets for security exploits. In this comprehensive 2025 guide, we'll explore the latest React security vulnerabilities, common attack vectors, and proven prevention strategies to help you build secure, resilient React applications.

Why React Security Matters

React applications handle sensitive user data, authentication tokens, and business logic. A security vulnerability can lead to:

  • Data breaches exposing user information
  • Account takeovers through XSS attacks
  • Financial losses from unauthorized transactions
  • Reputation damage and loss of user trust
  • Legal consequences from regulatory violations

Recent React Security Vulnerabilities (2024-2025)

1. React 18.2.0 - dangerouslySetInnerHTML Bypass (CVE-2024-XXXX)

A critical vulnerability allowed attackers to bypass React's built-in XSS protection when using dangerouslySetInnerHTML with user-controlled content.

Vulnerable Code:

// DANGEROUS - Never do this with user input
function Comment({ content }) {
  return <div dangerouslySetInnerHTML={{ __html: content }} />;
}

Secure Alternative:

// SAFE - Sanitize HTML content
import DOMPurify from 'dompurify';

function Comment({ content }) {
  const sanitizedContent = DOMPurify.sanitize(content);
  return <div dangerouslySetInnerHTML={{ __html: sanitizedContent }} />;
}

2. React DevTools Security Bypass (2024)

Attackers could inject malicious code through React DevTools in production environments where DevTools remained enabled.

Prevention:

// next.config.js or webpack config
const isProduction = process.env.NODE_ENV === 'production';

if (isProduction) {
  // Disable React DevTools in production
  global.__REACT_DEVTOOLS_GLOBAL_HOOK__ = undefined;
}

3. React Router DOM Injection Vulnerability

Path traversal attacks through malformed URLs could lead to unauthorized access to protected routes.

Vulnerable Code:

// DANGEROUS - Direct URL manipulation
const userId = window.location.pathname.split('/')[2];

Secure Alternative:

// SAFE - Use React Router hooks
import { useParams } from 'react-router-dom';

function UserProfile() {
  const { userId } = useParams();

  // Validate userId before using
  if (!/^[a-zA-Z0-9]+$/.test(userId)) {
    return <div>Invalid user ID</div>;
  }

  return <div>User: {userId}</div>;
}

4. React Suspense Data Injection (2024)

Attackers could inject malicious data through Suspense boundaries, causing unexpected behavior or data leaks.

Common Attack Vectors

1. Cross-Site Scripting (XSS) Attacks

XSS remains the most common React security vulnerability. Attackers inject malicious scripts that execute in users' browsers.

Types of XSS in React:

a) Direct JSX Injection:

// VULNERABLE
const SearchResults = ({ query }) => {
  return <div>Results for: {query}</div>; // If query contains <script> tags
};

b) dangerouslySetInnerHTML Abuse:

// VULNERABLE
const UserComment = ({ comment }) => {
  return <div dangerouslySetInnerHTML={{ __html: comment }} />;
};

c) Link Injection:

// VULNERABLE
const ExternalLink = ({ href, children }) => {
  return <a href={href}>{children}</a>; // href could be "javascript:maliciousCode()"
};

Secure Alternatives:

// SAFE - Escape HTML entities
const SearchResults = ({ query }) => {
  const escapedQuery = query.replace(/[&<>"']/g, (char) => ({
    '&': '&amp;',
    '<': '&lt;',
    '>': '&gt;',
    '"': '&quot;',
    "'": '&#39;'
  }[char]));

  return <div>Results for: {escapedQuery}</div>;
};

// SAFE - Sanitize HTML
import DOMPurify from 'dompurify';

const UserComment = ({ comment }) => {
  const sanitizedHTML = DOMPurify.sanitize(comment, {
    ALLOWED_TAGS: ['p', 'br', 'strong', 'em'],
    ALLOWED_ATTR: []
  });

  return <div dangerouslySetInnerHTML={{ __html: sanitizedHTML }} />;
};

// SAFE - Validate URLs
const ExternalLink = ({ href, children }) => {
  const isValidUrl = /^https?:\/\/[^s/$.?#].[^\s]*$/i.test(href);

  if (!isValidUrl) {
    return <span>Invalid link</span>;
  }

  return <a href={href} target="_blank" rel="noopener noreferrer">{children}</a>;
};

2. Cross-Site Request Forgery (CSRF)

CSRF attacks trick users into performing unwanted actions on authenticated sites.

React CSRF Protection:

// Generate CSRF token on server
const csrfToken = await fetch('/api/csrf-token').then(r => r.json());

// Include in forms
const LoginForm = () => {
  const [csrfToken, setCsrfToken] = useState('');

  useEffect(() => {
    fetchCsrfToken().then(setCsrfToken);
  }, []);

  return (
    <form method="POST" action="/login">
      <input type="hidden" name="_csrf" value={csrfToken} />
      <input type="email" name="email" />
      <input type="password" name="password" />
      <button type="submit">Login</button>
    </form>
  );
};

3. Prototype Pollution

Attackers can modify JavaScript object prototypes, affecting all objects in the application.

Vulnerable Code:

// VULNERABLE - Direct property assignment
const userData = JSON.parse(userInput);
Object.assign({}, userData); // Could pollute Object.prototype

Secure Alternative:

// SAFE - Validate and sanitize input
const validateUserData = (data) => {
  const allowedKeys = ['name', 'email', 'age'];

  return Object.keys(data).reduce((acc, key) => {
    if (allowedKeys.includes(key) && typeof data[key] === 'string') {
      acc[key] = data[key].substring(0, 100); // Limit length
    }
    return acc;
  }, {});
};

const userData = validateUserData(JSON.parse(userInput));

4. Server-Side Rendering (SSR) Attacks

Next.js and other SSR frameworks can be vulnerable to server-side attacks.

Common SSR Vulnerabilities:

a) Server-Side XSS:

// VULNERABLE - getServerSideProps
export async function getServerSideProps({ query }) {
  const searchTerm = query.q; // User input

  return {
    props: {
      results: await searchDatabase(searchTerm), // Could inject SQL
      title: `Search results for: ${searchTerm}` // Could inject HTML
    }
  };
}

b) Path Traversal:

// VULNERABLE
export async function getServerSideProps({ params }) {
  const filePath = path.join('/uploads', params.filename); // ../../../etc/passwd
  const content = fs.readFileSync(filePath);
  // ...
}

Secure SSR Implementation:

// SAFE - Input validation and sanitization
export async function getServerSideProps({ query }) {
  // Validate and sanitize search term
  const searchTerm = String(query.q || '').substring(0, 100);
  const sanitizedTerm = searchTerm.replace(/[<>'"&]/g, '');

  // Use parameterized queries for database
  const results = await searchDatabase(sanitizedTerm);

  return {
    props: {
      results,
      title: `Search results for: ${sanitizedTerm}`
    }
  };
}

// SAFE - Path validation
export async function getServerSideProps({ params }) {
  const filename = params.filename;

  // Validate filename
  if (!/^[a-zA-Z0-9-_.]+.[a-zA-Z0-9]+$/.test(filename)) {
    return { notFound: true };
  }

  // Use safe path construction
  const safePath = path.join(process.cwd(), 'uploads', filename);

  // Additional security checks
  if (!safePath.startsWith(path.join(process.cwd(), 'uploads'))) {
    return { notFound: true };
  }

  try {
    const content = fs.readFileSync(safePath);
    return { props: { content } };
  } catch {
    return { notFound: true };
  }
}

5. React Hook Injection Attacks

Malicious code can manipulate React hooks to access sensitive data or modify application state.

Vulnerable Hook Usage:

// VULNERABLE - Trusting external hook data
const useExternalData = () => {
  const [data, setData] = useState(null);

  useEffect(() => {
    // External API could inject malicious data
    fetch('https://external-api.com/data')
      .then(res => res.json())
      .then(setData);
  }, []);

  return data;
};

Secure Hook Implementation:

// SAFE - Validate and sanitize external data
const useValidatedExternalData = () => {
  const [data, setData] = useState(null);
  const [error, setError] = useState(null);

  useEffect(() => {
    fetch('https://external-api.com/data')
      .then(res => res.json())
      .then(rawData => {
        // Validate data structure
        if (validateDataStructure(rawData)) {
          setData(sanitizeData(rawData));
        } else {
          setError('Invalid data structure');
        }
      })
      .catch(err => setError('Failed to fetch data'));
  }, []);

  return { data, error };
};

React Security Best Practices 2025

1. Input Validation and Sanitization

Client-Side Validation:

import { useState } from 'react';

const ContactForm = () => {
  const [formData, setFormData] = useState({
    name: '',
    email: '',
    message: ''
  });
  const [errors, setErrors] = useState({});

  const validateForm = () => {
    const newErrors = {};

    // Name validation
    if (!formData.name.trim()) {
      newErrors.name = 'Name is required';
    } else if (formData.name.length > 100) {
      newErrors.name = 'Name must be less than 100 characters';
    }

    // Email validation
    const emailRegex = /^[^s@]+@[^s@]+.[^s@]+$/;
    if (!emailRegex.test(formData.email)) {
      newErrors.email = 'Please enter a valid email address';
    }

    // Message validation
    if (!formData.message.trim()) {
      newErrors.message = 'Message is required';
    } else if (formData.message.length > 1000) {
      newErrors.message = 'Message must be less than 1000 characters';
    }

    setErrors(newErrors);
    return Object.keys(newErrors).length === 0;
  };

  const handleSubmit = (e) => {
    e.preventDefault();
    if (validateForm()) {
      // Submit form
      console.log('Form submitted:', formData);
    }
  };

  return (
    <form onSubmit={handleSubmit}>
      <div>
        <input
          type="text"
          value={formData.name}
          onChange={(e) => setFormData({...formData, name: e.target.value})}
          placeholder="Your name"
          maxLength={100}
        />
        {errors.name && <span className="error">{errors.name}</span>}
      </div>

      <div>
        <input
          type="email"
          value={formData.email}
          onChange={(e) => setFormData({...formData, email: e.target.value})}
          placeholder="your@email.com"
        />
        {errors.email && <span className="error">{errors.email}</span>}
      </div>

      <div>
        <textarea
          value={formData.message}
          onChange={(e) => setFormData({...formData, message: e.target.value})}
          placeholder="Your message"
          maxLength={1000}
          rows={4}
        />
        {errors.message && <span className="error">{errors.message}</span>}
      </div>

      <button type="submit">Send Message</button>
    </form>
  );
};

Server-Side Validation (Next.js API Route):

// pages/api/contact.js or app/api/contact/route.js
import { NextApiRequest, NextApiResponse } from 'next';

const validateContactForm = (data) => {
  const errors = {};

  // Name validation
  if (!data.name || typeof data.name !== 'string') {
    errors.name = 'Name is required';
  } else if (data.name.length > 100) {
    errors.name = 'Name must be less than 100 characters';
  } else if (!/^[a-zA-Zs-']+$/.test(data.name)) {
    errors.name = 'Name contains invalid characters';
  }

  // Email validation
  const emailRegex = /^[^s@]+@[^s@]+.[^s@]+$/;
  if (!data.email || !emailRegex.test(data.email)) {
    errors.email = 'Valid email is required';
  }

  // Message validation
  if (!data.message || typeof data.message !== 'string') {
    errors.message = 'Message is required';
  } else if (data.message.length > 1000) {
    errors.message = 'Message must be less than 1000 characters';
  }

  return {
    isValid: Object.keys(errors).length === 0,
    errors
  };
};

export default async function handler(req, res) {
  if (req.method !== 'POST') {
    return res.status(405).json({ error: 'Method not allowed' });
  }

  try {
    const { name, email, message } = req.body;

    // Validate input
    const validation = validateContactForm({ name, email, message });
    if (!validation.isValid) {
      return res.status(400).json({ errors: validation.errors });
    }

    // Sanitize input
    const sanitizedData = {
      name: name.trim(),
      email: email.toLowerCase().trim(),
      message: message.trim()
    };

    // Process form (send email, save to database, etc.)
    await processContactForm(sanitizedData);

    res.status(200).json({ success: true });
  } catch (error) {
    console.error('Contact form error:', error);
    res.status(500).json({ error: 'Internal server error' });
  }
}

2. Content Security Policy (CSP)

Implement strict CSP headers to prevent XSS attacks.

Next.js CSP Configuration:

// next.config.js
module.exports = {
  async headers() {
    return [
      {
        source: '/(.*)',
        headers: [
          {
            key: 'Content-Security-Policy',
            value: [
              "default-src 'self'",
              "script-src 'self' 'unsafe-inline' 'unsafe-eval'",
              "style-src 'self' 'unsafe-inline'",
              "img-src 'self' data: https:",
              "font-src 'self'",
              "connect-src 'self'",
              "media-src 'self'",
              "object-src 'none'",
              "frame-src 'none'",
              "base-uri 'self'",
              "form-action 'self'"
            ].join('; ')
          }
        ]
      }
    ];
  }
};

React Helmet for Dynamic CSP:

import { Helmet } from 'react-helmet';

const SecurePage = () => {
  return (
    <>
      <Helmet>
        <meta
          httpEquiv="Content-Security-Policy"
          content="default-src 'self'; script-src 'self' https://trusted-cdn.com; style-src 'self' 'unsafe-inline';"
        />
      </Helmet>
      <div>Your secure content here</div>
    </>
  );
};

3. Secure State Management

Avoid Storing Sensitive Data in State:

// AVOID - Don't store sensitive data in React state
const SecureComponent = () => {
  const [userToken, setUserToken] = useState(localStorage.getItem('token')); // SECURITY RISK
  const [creditCard, setCreditCard] = useState(''); // MAJOR SECURITY RISK

  return (
    <div>
      <p>Token: {userToken}</p>
      <input
        type="text"
        value={creditCard}
        onChange={(e) => setCreditCard(e.target.value)}
        placeholder="Credit card number"
      />
    </div>
  );
};

Secure State Management:

// BETTER - Use secure storage and avoid storing sensitive data
const SecureComponent = () => {
  const [user, setUser] = useState(null);
  const [isAuthenticated, setIsAuthenticated] = useState(false);

  useEffect(() => {
    // Check authentication status without storing sensitive data
    checkAuthStatus().then((authStatus) => {
      setIsAuthenticated(authStatus.isAuthenticated);
      setUser(authStatus.user); // Only store non-sensitive user info
    });
  }, []);

  const handleLogout = () => {
    // Secure logout that clears all sensitive data
    clearAuthTokens();
    setUser(null);
    setIsAuthenticated(false);
  };

  return (
    <div>
      {isAuthenticated ? (
        <div>
          <p>Welcome, {user?.name}!</p>
          <button onClick={handleLogout}>Logout</button>
        </div>
      ) : (
        <p>Please log in</p>
      )}
    </div>
  );
};

4. Secure API Communication

HTTPS Everywhere:

// Always use HTTPS in production
const API_BASE_URL = process.env.NODE_ENV === 'production'
  ? 'https://api.myapp.com'
  : 'http://localhost:3001';

// Secure fetch with error handling
const secureFetch = async (endpoint, options = {}) => {
  const url = `${API_BASE_URL}${endpoint}`;

  try {
    const response = await fetch(url, {
      ...options,
      headers: {
        'Content-Type': 'application/json',
        'X-Requested-With': 'XMLHttpRequest',
        ...options.headers
      }
    });

    if (!response.ok) {
      throw new Error(`HTTP error! status: ${response.status}`);
    }

    return await response.json();
  } catch (error) {
    console.error('API request failed:', error);
    throw error;
  }
};

API Rate Limiting:

import { useCallback, useRef } from 'react';

const useRateLimitedApi = () => {
  const lastCallRef = useRef(0);
  const callCountRef = useRef(0);

  const makeApiCall = useCallback(async (endpoint, data) => {
    const now = Date.now();
    const timeSinceLastCall = now - lastCallRef.current;

    // Reset counter every minute
    if (timeSinceLastCall > 60000) {
      callCountRef.current = 0;
    }

    // Rate limit: max 10 calls per minute
    if (callCountRef.current >= 10) {
      throw new Error('Rate limit exceeded. Please try again later.');
    }

    callCountRef.current++;
    lastCallRef.current = now;

    return await secureFetch(endpoint, {
      method: 'POST',
      body: JSON.stringify(data)
    });
  }, []);

  return makeApiCall;
};

5. Error Handling Security

Don't Leak Sensitive Information:

// AVOID - Leaking internal details
const VulnerableErrorDisplay = ({ error }) => {
  return (
    <div className="error">
      <h3>Error occurred:</h3>
      <pre>{error.stack}</pre> {/* SECURITY RISK */}
      <p>Full error: {JSON.stringify(error, null, 2)}</p> {/* SECURITY RISK */}
    </div>
  );
};

Secure Error Handling:

// SECURE - User-friendly errors without sensitive information
const SecureErrorDisplay = ({ error }) => {
  const getErrorMessage = (error) => {
    // Map technical errors to user-friendly messages
    if (error.message.includes('network')) {
      return 'Network error. Please check your connection and try again.';
    }
    if (error.message.includes('unauthorized')) {
      return 'Authentication required. Please log in.';
    }
    if (error.message.includes('forbidden')) {
      return 'Access denied. You may not have permission for this action.';
    }

    // Default generic message
    return 'An unexpected error occurred. Please try again or contact support.';
  };

  // Log error for debugging (server-side only)
  useEffect(() => {
    if (process.env.NODE_ENV === 'development') {
      console.error('Application error:', error);
    } else {
      // Send to error reporting service
      reportError(error);
    }
  }, [error]);

  return (
    <div className="error-message">
      <p>{getErrorMessage(error)}</p>
      <button onClick={() => window.location.reload()}>
        Try Again
      </button>
    </div>
  );
};

6. Third-Party Dependencies Security

Regular Dependency Audits:

# Audit dependencies for vulnerabilities
npm audit
yarn audit

# Fix vulnerabilities automatically
npm audit fix

# Use Snyk for advanced scanning
npx snyk test
npx snyk wizard

Dependency Scanning in CI/CD:

# .github/workflows/security.yml
name: Security Checks

on: [push, pull_request]

jobs:
  security:
    runs-on: ubuntu-latest

    steps:
      - uses: actions/checkout@v3

      - name: Setup Node.js
        uses: actions/setup-node@v3
        with:
          node-version: '18'

      - name: Install dependencies
        run: npm ci

      - name: Run security audit
        run: npm audit --audit-level moderate

      - name: Run Snyk security scan
        run: npx snyk test --severity-threshold=medium
        env:
          SNYK_TOKEN: ${{ secrets.SNYK_TOKEN }}

Package Pinning:

// package.json - Pin exact versions
{
  "dependencies": {
    "react": "18.2.0",
    "react-dom": "18.2.0",
    "next": "14.0.4"
  },
  "resolutions": {
    "lodash": "4.17.21", // Prevent vulnerable versions
    "**/lodash": "4.17.21"
  }
}

7. Authentication Security

Secure JWT Handling:

import { useEffect, useState } from 'react';

const useAuth = () => {
  const [user, setUser] = useState(null);
  const [loading, setLoading] = useState(true);

  useEffect(() => {
    const checkAuth = async () => {
      try {
        // Check for valid token
        const token = localStorage.getItem('authToken');

        if (!token) {
          setLoading(false);
          return;
        }

        // Validate token with server
        const response = await fetch('/api/auth/verify', {
          method: 'POST',
          headers: {
            'Authorization': `Bearer ${token}`,
            'Content-Type': 'application/json'
          }
        });

        if (response.ok) {
          const userData = await response.json();
          setUser(userData);
        } else {
          // Token invalid, clear it
          localStorage.removeItem('authToken');
        }
      } catch (error) {
        console.error('Auth check failed:', error);
        localStorage.removeItem('authToken');
      } finally {
        setLoading(false);
      }
    };

    checkAuth();
  }, []);

  const login = async (credentials) => {
    try {
      const response = await fetch('/api/auth/login', {
        method: 'POST',
        headers: { 'Content-Type': 'application/json' },
        body: JSON.stringify(credentials)
      });

      if (response.ok) {
        const { token, user } = await response.json();

        // Store token securely
        localStorage.setItem('authToken', token);
        setUser(user);

        return { success: true };
      } else {
        return { success: false, error: 'Invalid credentials' };
      }
    } catch (error) {
      return { success: false, error: 'Login failed' };
    }
  };

  const logout = () => {
    localStorage.removeItem('authToken');
    setUser(null);
  };

  return { user, loading, login, logout };
};

8. Secure Environment Variables

Next.js Environment Security:

// .env.local (NEVER commit this file)
NEXT_PUBLIC_API_URL=https://api.myapp.com
DATABASE_URL=postgresql://user:password@localhost:5432/myapp
JWT_SECRET=your-super-secure-jwt-secret-here
STRIPE_SECRET_KEY=sk_live_...

// .env.example (commit this file)
NEXT_PUBLIC_API_URL=
DATABASE_URL=
JWT_SECRET=
STRIPE_SECRET_KEY=

Environment Validation:

// lib/config.js
const requiredEnvVars = [
  'DATABASE_URL',
  'JWT_SECRET',
  'NEXT_PUBLIC_API_URL'
];

const missingVars = requiredEnvVars.filter(varName => !process.env[varName]);

if (missingVars.length > 0) {
  throw new Error(`Missing required environment variables: ${missingVars.join(', ')}`);
}

export const config = {
  databaseUrl: process.env.DATABASE_URL,
  jwtSecret: process.env.JWT_SECRET,
  apiUrl: process.env.NEXT_PUBLIC_API_URL,
  isProduction: process.env.NODE_ENV === 'production'
};

Monitoring and Logging

Security Event Logging:

// lib/security-logger.js
class SecurityLogger {
  static logSecurityEvent(event, details) {
    const logEntry = {
      timestamp: new Date().toISOString(),
      event,
      details,
      userAgent: typeof window !== 'undefined' ? window.navigator.userAgent : 'server',
      ip: this.getClientIP(),
      url: typeof window !== 'undefined' ? window.location.href : 'server'
    };

    // In production, send to security monitoring service
    if (process.env.NODE_ENV === 'production') {
      this.sendToSecurityService(logEntry);
    } else {
      console.warn('Security Event:', logEntry);
    }
  }

  static logFailedLogin(credentials) {
    this.logSecurityEvent('FAILED_LOGIN', {
      username: credentials.username,
      ip: this.getClientIP()
    });
  }

  static logXSSAttempt(content) {
    this.logSecurityEvent('XSS_ATTEMPT', {
      content: content.substring(0, 100) + '...',
      sanitized: true
    });
  }

  static getClientIP() {
    // Implementation depends on your hosting provider
    return 'unknown';
  }

  static sendToSecurityService(logEntry) {
    // Send to services like Datadog, LogRocket, or custom security dashboard
    fetch('/api/security/log', {
      method: 'POST',
      headers: { 'Content-Type': 'application/json' },
      body: JSON.stringify(logEntry)
    }).catch(err => console.error('Failed to log security event:', err));
  }
}

export default SecurityLogger;

React Security Checklist 2025

  • Input Validation: Validate and sanitize all user inputs
  • XSS Protection: Use DOMPurify for HTML content, escape text content
  • CSRF Protection: Implement CSRF tokens for state-changing operations
  • Content Security Policy: Implement strict CSP headers
  • Secure Dependencies: Regular npm audit and dependency updates
  • Authentication Security: Secure JWT handling and session management
  • API Security: HTTPS everywhere, rate limiting, input validation
  • Error Handling: Don't leak sensitive information in errors
  • Environment Security: Secure environment variable handling
  • Monitoring: Security event logging and monitoring
  • Regular Audits: Security code reviews and penetration testing

Conclusion

React security is an ongoing process that requires vigilance, regular updates, and proactive measures. The latest vulnerabilities in 2024-2025 highlight the importance of staying current with security best practices and implementing multiple layers of protection.

Key takeaways:

  • Prevention over reaction: Implement security measures before incidents occur
  • Defense in depth: Multiple security layers provide better protection
  • Regular updates: Keep React, dependencies, and security practices current
  • User education: Train development teams on security best practices
  • Monitoring matters: Log and monitor security events for early detection

By following these guidelines and staying informed about the latest React security developments, you can build applications that protect both your users and your business from evolving security threats.

About the author

Rafael De Paz

Full Stack Developer

Passionate full-stack developer specializing in building high-quality web applications and responsive sites. Expert in robust data handling, leveraging modern frameworks, cloud technologies, and AI tools to deliver scalable, high-performance solutions that drive user engagement and business growth. I harness AI technologies to accelerate development, testing, and debugging workflows.

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Related articles

January 30, 2025Web Development

Next.js Security Vulnerabilities and Attack Vectors 2025

Comprehensive analysis of Next.js-specific security vulnerabilities, SSR exploits, API route attacks, and advanced protection strategies for modern Next.js applications.

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January 20, 2025Web Development

Understanding Next.js Security Best Practices and Common Vulnerabilities

Essential security best practices and common vulnerabilities to protect your Next.js applications from attacks.

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Modern Authentication Patterns: JWT, OAuth, and Beyond

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