CVE-2025-9728
📋 TL;DR
This is a reflected cross-site scripting (XSS) vulnerability in Vvveb CMS version 1.0.7.2 that allows attackers to inject malicious scripts via the login form's Email/Password parameters. The vulnerability affects all users of this specific version who have the login page accessible. Attackers can execute arbitrary JavaScript in victims' browsers when they visit a crafted login URL.
💻 Affected Systems
- givanz Vvveb CMS
📦 What is this software?
Vvveb by Vvveb
⚠️ Risk & Real-World Impact
Worst Case
Attackers could steal session cookies, perform actions as authenticated users, redirect to malicious sites, or install malware through drive-by downloads.
Likely Case
Session hijacking leading to unauthorized access to user accounts and potential data theft.
If Mitigated
Limited impact if proper Content Security Policy (CSP) headers are implemented and input validation is enforced elsewhere.
🎯 Exploit Status
Exploitation requires user interaction (visiting a malicious link) but is trivial to execute.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Patched in commit bbd4c42c66ab818142240348173a669d1d2537fe
Vendor Advisory: https://github.com/givanz/Vvveb/commit/bbd4c42c66ab818142240348173a669d1d2537fe
Restart Required: No
Instructions:
1. Download the patch from the GitHub commit. 2. Apply the patch to app/template/user/login.tpl. 3. Clear any cached templates. 4. Test the login functionality.
🔧 Temporary Workarounds
Input Validation Filter
allAdd server-side validation to sanitize Email and Password parameters before processing.
Modify login controller to apply htmlspecialchars() or similar filtering to user inputs
Content Security Policy
allImplement CSP headers to restrict script execution sources.
Add header: Content-Security-Policy: default-src 'self'; script-src 'self'
🧯 If You Can't Patch
- Disable or restrict access to the login page using web application firewall (WAF) rules.
- Implement strong session management with HttpOnly and Secure cookie flags to limit cookie theft impact.
🔍 How to Verify
Check if Vulnerable:
Test by accessing login page with XSS payload in Email parameter: /user/login?Email=<script>alert('XSS')</script>Check Version:
Check Vvveb version in admin panel or read version file if available.Verify Fix Applied:
Verify the patch by checking that script tags in Email/Password parameters are properly escaped in the HTML output.📡 Detection & Monitoring
Log Indicators:
- Unusual login attempts with script tags or JavaScript in Email/Password fields
- Multiple failed logins from same IP with XSS patterns
Network Indicators:
- HTTP requests to login page containing <script> tags or JavaScript code in parameters
SIEM Query:
source="web_logs" AND uri_path="/user/login" AND (query_string="*<script>*" OR query_string="*javascript:*")🔗 References
- https://github.com/givanz/Vvveb/commit/bbd4c42c66ab818142240348173a669d1d2537fe
- https://github.com/givanz/Vvveb/issues/323
- https://github.com/kwerty138/Reflected-XSS-in-Vvveb-CMS-v1.0.7.2
- https://vuldb.com/?ctiid.322017
- https://vuldb.com/?id.322017
- https://vuldb.com/?submit.639704
- https://github.com/givanz/Vvveb/issues/323
- https://github.com/kwerty138/Reflected-XSS-in-Vvveb-CMS-v1.0.7.2
