CVE-2025-6476
📋 TL;DR
This vulnerability in SourceCodester Gym Management System 1.0 allows attackers to perform Cross-Site Request Forgery (CSRF) attacks. Attackers can trick authenticated users into executing unwanted actions on the system without their knowledge. Anyone using the vulnerable version of this gym management software is affected.
💻 Affected Systems
- SourceCodester Gym Management System
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Attackers could manipulate administrative actions, create/delete user accounts, modify system settings, or steal sensitive data through forged requests executed by authenticated users.
Likely Case
Attackers trick users into performing unintended actions like changing their own account details, making unauthorized bookings, or modifying their personal information.
If Mitigated
With proper CSRF protections and user awareness, impact is limited to unsuccessful attack attempts with no data compromise.
🎯 Exploit Status
Exploit requires the victim to be authenticated and visit a malicious page while logged into the system. Attack can be delivered via phishing or malicious websites.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: https://www.sourcecodester.com/
Restart Required: No
Instructions:
No official patch available. Check vendor website for updates or consider alternative solutions.
🔧 Temporary Workarounds
Implement CSRF Tokens
allAdd anti-CSRF tokens to all state-changing forms and validate them server-side
SameSite Cookie Attribute
allSet SameSite=Strict or SameSite=Lax attributes on session cookies
🧯 If You Can't Patch
- Implement web application firewall (WAF) rules to detect and block CSRF patterns
- Educate users about the risks of clicking unknown links while authenticated and implement session timeout policies
🔍 How to Verify
Check if Vulnerable:
Check if forms lack CSRF tokens or if tokens aren't validated. Test by creating a simple HTML form that submits to the application without proper tokens.Check Version:
Check the application's admin panel or configuration files for version information. Typically found in footer or about page.Verify Fix Applied:
Verify that all forms include unique, unpredictable CSRF tokens that are validated server-side before processing requests.📡 Detection & Monitoring
Log Indicators:
- Multiple failed state-changing requests from same IP with different user sessions
- Requests missing expected CSRF tokens or parameters
Network Indicators:
- HTTP POST requests to application endpoints without Referer headers or with external referers
- Unusual patterns of form submissions from unexpected sources
SIEM Query:
source="web_server" AND (http_method="POST" OR http_method="PUT") AND NOT csrf_token=* AND response_code=200