CVE-2025-28015
📋 TL;DR
A HTML injection vulnerability in PHPGurukul User Registration & Login and User Management System V3.3 allows remote attackers to inject arbitrary HTML code through the fname, lname, and contact parameters in the edit-profile.php file. This affects all users of the vulnerable system version, potentially leading to phishing attacks, session hijacking, or defacement.
💻 Affected Systems
- PHPGurukul User Registration & Login and User Management System
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Attackers could inject malicious scripts that steal session cookies, redirect users to phishing sites, or perform actions on behalf of authenticated users, potentially leading to account takeover.
Likely Case
Attackers inject HTML that creates phishing forms, defaces user profiles, or redirects users to malicious sites, compromising user trust and data integrity.
If Mitigated
With proper input validation and output encoding, injected HTML would be rendered as plain text, preventing execution and limiting impact to visual anomalies.
🎯 Exploit Status
Exploitation requires user authentication to access edit-profile.php; HTML injection is straightforward once authenticated.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: None known
Restart Required: No
Instructions:
No official patch available; implement input validation and output encoding as workarounds.
🔧 Temporary Workarounds
Implement Input Validation
allSanitize fname, lname, and contact parameters to allow only alphanumeric characters and safe symbols.
In edit-profile.php, add: $fname = htmlspecialchars($_POST['fname'], ENT_QUOTES, 'UTF-8');
Repeat for lname and contact parameters.
Enable Output Encoding
allUse htmlspecialchars or htmlentities when outputting user data to prevent HTML execution.
In display code, use: echo htmlspecialchars($userData, ENT_QUOTES, 'UTF-8');
🧯 If You Can't Patch
- Disable or restrict access to edit-profile.php via web server configuration (e.g., .htaccess for Apache).
- Implement a Web Application Firewall (WAF) to block HTML injection attempts.
🔍 How to Verify
Check if Vulnerable:
Log in as a user, edit profile with payload like <script>alert('XSS')</script> in fname, lname, or contact fields, and check if script executes.Check Version:
Check system documentation or admin panel for version info; no standard command available.Verify Fix Applied:
After applying workarounds, repeat the test; injected HTML should display as plain text without execution.📡 Detection & Monitoring
Log Indicators:
- Log entries showing HTML tags or scripts in fname, lname, or contact parameters in edit-profile.php requests.
Network Indicators:
- HTTP POST requests to edit-profile.php containing suspicious HTML patterns in parameters.
SIEM Query:
source="web_logs" AND uri="/loginsystem/edit-profile.php" AND (param="fname" OR param="lname" OR param="contact") AND (value="<script>" OR value="<iframe>" OR value="javascript:")