CVE-2025-13577
📋 TL;DR
This vulnerability allows attackers to inject malicious scripts into the Hostel Management System's complaint registration page. Anyone using PHPGurukul Hostel Management System 2.1 with the vulnerable /register-complaint.php file is affected. Attackers can execute cross-site scripting attacks remotely when users submit complaints.
💻 Affected Systems
- PHPGurukul Hostel Management System
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Attackers steal session cookies, hijack user accounts, redirect users to malicious sites, or perform actions on behalf of authenticated users.
Likely Case
Attackers inject malicious scripts that steal user session data or credentials when users submit complaints through the vulnerable form.
If Mitigated
With proper input validation and output encoding, malicious scripts are neutralized before execution, preventing successful exploitation.
🎯 Exploit Status
The exploit has been published and requires minimal technical skill to execute. Attackers can craft malicious URLs or forms targeting the cdetails parameter.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: https://phpgurukul.com/
Restart Required: No
Instructions:
1. Check vendor website for security updates. 2. Apply any available patches. 3. If no patch exists, implement workarounds or consider upgrading to a newer version if available.
🔧 Temporary Workarounds
Input Validation and Sanitization
allImplement server-side validation and sanitization of the cdetails parameter to strip or encode malicious scripts.
Modify /register-complaint.php to include: $cdetails = htmlspecialchars($_POST['cdetails'], ENT_QUOTES, 'UTF-8');
Content Security Policy (CSP)
allImplement CSP headers to restrict script execution sources and mitigate XSS impact.
Add to .htaccess: Header set Content-Security-Policy "default-src 'self'; script-src 'self'"
Or add to PHP: header("Content-Security-Policy: default-src 'self'; script-src 'self'");
🧯 If You Can't Patch
- Implement Web Application Firewall (WAF) rules to block XSS payloads in the cdetails parameter.
- Restrict access to /register-complaint.php to trusted users only using authentication and IP whitelisting.
🔍 How to Verify
Check if Vulnerable:
Test by submitting a script payload like <script>alert('XSS')</script> in the cdetails field of the complaint form and check if it executes.Check Version:
Check the system's admin panel or configuration files for version information, or inspect the software documentation.Verify Fix Applied:
After applying fixes, test with the same payload to ensure it's properly sanitized and doesn't execute.📡 Detection & Monitoring
Log Indicators:
- Unusual POST requests to /register-complaint.php with script tags or JavaScript in parameters.
- Multiple complaint submissions with similar malicious payloads.
Network Indicators:
- HTTP requests containing <script>, javascript:, or other XSS payloads in the cdetails parameter.
SIEM Query:
source="web_logs" AND uri_path="/register-complaint.php" AND (request_body LIKE "%<script>%" OR request_body LIKE "%javascript:%")