CVE-2025-63716
📋 TL;DR
CVE-2025-63716 is a Cross-Site Request Forgery vulnerability in SourceCodester Leads Manager Tool v1.0 that allows attackers to trick authenticated users into performing unauthorized state-changing operations. This affects all users running the vulnerable version of this PHP/MySQL web application. Attackers could modify leads data, change settings, or perform other administrative actions without the user's knowledge.
💻 Affected Systems
- SourceCodester Leads Manager Tool
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete compromise of leads database including data deletion, modification of all records, or configuration changes that disable the application.
Likely Case
Unauthorized modification or deletion of leads data, potentially causing business disruption and data integrity issues.
If Mitigated
Limited impact with proper CSRF protections in place, though other vulnerabilities might still exist.
🎯 Exploit Status
CSRF attacks are well-understood and easy to implement. Exploitation requires the victim to be authenticated and visit a malicious page.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Not available
Vendor Advisory: Not available
Restart Required: No
Instructions:
No official patch available. Consider implementing CSRF protection manually or replacing with alternative software.
🔧 Temporary Workarounds
Implement CSRF Token Protection
allAdd anti-CSRF tokens to all state-changing forms and endpoints
Manual code modification required - add token generation and validation to PHP files
Same-Site Cookie Attribute
allSet SameSite=Strict or Lax attributes on session cookies
session_set_cookie_params(['samesite' => 'Strict']); in PHP configuration
🧯 If You Can't Patch
- Implement WAF rules to detect and block CSRF attempts
- Restrict application access to trusted networks only
🔍 How to Verify
Check if Vulnerable:
Check if forms lack CSRF tokens and POST endpoints don't validate referer/origin headersCheck Version:
Check PHP files for version comments or application configurationVerify Fix Applied:
Test that all state-changing operations require valid CSRF tokens and fail without them📡 Detection & Monitoring
Log Indicators:
- Multiple state-changing requests from same user without corresponding form submissions
- POST requests missing expected CSRF tokens
Network Indicators:
- Cross-origin POST requests to application endpoints
- Requests with mismatched referer headers
SIEM Query:
web_requests method=POST AND NOT referer CONTAINS 'yourdomain.com' AND uri_path CONTAINS '/leads/'