How to Fix Laravel Security Issues

Step-by-step guides to identify and fix the most common security vulnerabilities in Laravel applications. Each guide includes actionable code examples, verification steps, and prevention tips.

Application Security

Critical 4 steps

Laravel .env File Exposed: How to Block Public Access and Rotate Leaked Credentials

Your Laravel .env file is publicly accessible, leaking database credentials, APP_KEY, and API keys. Block it in Apache and Nginx, then rotate every compromised secret.

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Critical 4 steps

Laravel Debug Mode in Production: How to Disable APP_DEBUG and Stop Leaking Secrets

APP_DEBUG=true in production exposes stack traces, environment variables, and database credentials to anyone who triggers an error. Here is how to disable it safely and verify the fix.

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High 3 steps

How to Fix Missing Security Headers in Laravel

Your Laravel app is missing critical security headers like CSP, HSTS, and X-Frame-Options. Learn how to add them with middleware.

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Critical 3 steps

How to Fix an Exposed Laravel Telescope Dashboard

Your Laravel Telescope dashboard is publicly accessible in production, exposing requests, queries, and application data. Secure it now.

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Critical 4 steps

How to Fix Exposed Laravel Ignition Error Pages

Laravel Ignition error pages are visible in production, leaking stack traces and environment details. Learn how to disable them.

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High 4 steps

Fix Missing CSRF Protection in Laravel: @csrf, VerifyCsrfToken & API Routes

Laravel forms without @csrf tokens are vulnerable to cross-site request forgery. Learn how to add CSRF protection, configure VerifyCsrfToken exceptions, and handle CSRF for API routes.

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High 3 steps

Fix CORS Misconfiguration in Laravel: Wildcard Origins, Credentials & config/cors.php

Using Access-Control-Allow-Origin: * with credentials enabled? That lets any site call your API as the logged-in user. Here is how to lock down config/cors.php properly.

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High 3 steps

How to Fix Missing Rate Limiting in Laravel

Your Laravel login and API endpoints have no rate limiting, enabling brute-force attacks and API abuse. Add throttling now.

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Critical 4 steps

How to Prevent SQL Injection in Laravel

SQL injection vulnerabilities in raw queries and improper Eloquent usage can expose your database. Learn how to write secure queries.

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High 4 steps

Laravel XSS Prevention Guide: Blade Escaping, {!! !!} Risks & CSP Headers

Prevent cross-site scripting in Laravel. Learn when {!! !!} is safe, how to sanitize HTML input, encode output in Blade templates, and add Content Security Policy headers.

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High 4 steps

How to Fix an Exposed Laravel Storage Directory

Your Laravel storage directory is publicly accessible, exposing logs, cache files, and uploaded data. Learn how to restrict access.

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High 4 steps

Laravel Session Security: Fix Insecure Cookie Config (Secure, HttpOnly, SameSite)

Laravel session cookies missing Secure, HttpOnly, or SameSite flags? Fix your config/session.php to prevent session hijacking, cookie theft, and CSRF attacks.

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High 4 steps

How to Fix JWT Token Vulnerabilities in Laravel

Weak JWT implementation in your Laravel API can lead to authentication bypass and token forgery. Learn how to secure your JWT setup.

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High 4 steps

How to Fix WordPress Security Vulnerabilities

Running WordPress alongside Laravel? Common WordPress vulnerabilities like outdated plugins and exposed wp-admin need attention.

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High 4 steps

Laravel Mass Assignment Vulnerability: How to Protect Eloquent Models with $fillable and $guarded

Eloquent models without $fillable or $guarded allow attackers to set any database column through request input, including is_admin, role, or email_verified_at.

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Critical 4 steps

Laravel Dangerous Function Calls: How to Eliminate eval, shell_exec, and system from Your Codebase

Functions like eval(), shell_exec(), system(), and proc_open() execute arbitrary code. If reachable from user input, they give attackers full server access.

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Medium 3 steps

Laravel Request Validation: How to Stop Using Raw $request Input in Controllers

Controllers using $request->input() or $request->all() without validation expose your app to type juggling, injection, and data corruption attacks.

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High 4 steps

Hardcoded Credentials in Laravel: How to Find and Remove Secrets from Source Code

API keys, passwords, and secrets committed to source code are exposed to anyone with repository access. Move them to environment variables before they leak.

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High 4 steps

Laravel File Upload Security: How to Validate Type, Size, and Storage Location

File uploads without type or size validation let attackers upload PHP shells, oversized files, or executable scripts that compromise your server.

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Critical 3 steps

Laravel APP_KEY Security: How to Generate, Rotate, and Protect Your Encryption Key

A missing, short, or committed APP_KEY compromises session encryption, signed URLs, and all data encrypted with Crypt. Generate a strong key and keep it out of Git.

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High 3 steps

Laravel Open Redirect: How to Validate Redirect URLs and Prevent Phishing Attacks

Redirects using unvalidated user input let attackers craft links that appear to come from your domain but redirect victims to malicious sites.

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High 3 steps

Laravel Weak Password Hashing: How to Replace md5 and sha1 with bcrypt

Using md5() or sha1() for password hashing is trivially crackable. Laravel uses bcrypt by default — make sure your application does too.

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Critical 3 steps

Laravel Unsafe Deserialization: How to Eliminate unserialize() and Prevent Object Injection

PHP unserialize() with user-controlled data enables remote code execution through object injection. Replace with json_decode() or add allowed_classes restrictions.

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Medium 3 steps

Laravel Missing Authorization: How to Add Policy and Gate Checks to Controllers

Controllers with store, update, and destroy actions but no authorization let any authenticated user modify any record. Add policies to enforce ownership.

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High 3 steps

Laravel Debug Routes in Production: How to Find and Remove Test Endpoints

Debug and test routes left in production expose phpinfo(), database dumps, and internal application state to anyone who finds them.

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High 4 steps

Laravel Known Dependency Vulnerabilities: How to Find and Fix Insecure Composer Packages

Your composer.lock contains packages with published security advisories. Update affected packages or apply patches before attackers exploit known CVEs.

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High 3 steps

Laravel Insecure Package Versions: How to Identify and Replace Known-Vulnerable Dependencies

Your project requires package versions with known security issues. Update to patched versions or find secure alternatives.

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Medium 3 steps

Outdated Laravel Version: How to Upgrade to a Supported Release for Security Patches

Running a Laravel version below current LTS means you are no longer receiving security patches. Upgrade to stay protected against published vulnerabilities.

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Medium 3 steps

Laravel Insecure Random Numbers: How to Replace rand() and mt_rand() with Cryptographic Alternatives

Using rand() or mt_rand() for tokens, passwords, or security decisions creates predictable values that attackers can guess or reproduce.

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Medium 3 steps

Laravel Weak Encryption Cipher: How to Ensure AES-256-CBC Is Configured Correctly

A non-standard cipher in config/app.php weakens all encryption in your application. Verify AES-256-CBC is set and your APP_KEY matches.

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Infrastructure Security

High 4 steps

How to Fix Weak SSL/TLS Configuration in Laravel

Your SSL/TLS certificate is expired, misconfigured, or using weak protocols. Learn how to fix SSL issues for your Laravel app.

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Critical 4 steps

How to Fix an Exposed .git Directory

Your .git directory is publicly accessible, allowing attackers to download your entire source code and commit history. Fix it now.

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High 4 steps

How to Fix Subdomain Takeover Vulnerabilities

Dangling DNS records pointing to decommissioned services allow attackers to take over your subdomains. Learn how to find and fix them.

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Medium 4 steps

How to Fix Missing Email Security Records (SPF/DKIM/DMARC)

Missing SPF, DKIM, and DMARC records allow attackers to send spoofed emails from your domain. Configure email authentication now.

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Medium 3 steps

Disable Directory Listing in Apache & Nginx: Fix Options +Indexes Exposure

Directory listing (Options +Indexes) lets anyone browse your file structure. Here is how to disable it in Apache .htaccess and Nginx, and verify the fix.

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Medium 4 steps

How to Fix DNS Security Issues and Misconfigurations

DNS misconfigurations like open zone transfers and missing DNSSEC expose your domain to hijacking and spoofing attacks. Fix them now.

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Medium 3 steps

Laravel Trusted Proxies Wildcard: How to Configure TrustProxies Middleware Correctly

Setting TrustProxies to trust all proxies (*) lets attackers spoof IP addresses and bypass rate limiting, IP-based access controls, and audit logging.

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High 3 steps

Laravel File Permissions: How to Fix World-Writable Files and Secure Your Filesystem

Files with 777 or 666 permissions let any user on the server read, write, or execute them. Set restrictive permissions to prevent unauthorized modification.

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High 3 steps

Laravel Backup Files in Public Directory: How to Find and Remove Exposed Archives and Dumps

Database dumps, .zip archives, and .sql backups in your public directory are downloadable by anyone. Move them out of the web root immediately.

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Medium 3 steps

Laravel Writable Config Files: How to Set Read-Only Permissions on Configuration

Config files writable by the web server can be modified by an attacker who gains limited access. Set them to read-only to prevent configuration tampering.

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