CVE-2025-12203
📋 TL;DR
This CVE describes a path traversal vulnerability in givanz Vvveb CMS up to version 1.0.7.3. Attackers can manipulate file paths through the Code Editor component to access arbitrary files on the server. This affects all installations using vulnerable versions of Vvveb CMS.
💻 Affected Systems
- givanz Vvveb CMS
📦 What is this software?
Vvveb by Vvveb
⚠️ Risk & Real-World Impact
Worst Case
Remote attackers could read sensitive files like configuration files, source code, or system files, potentially leading to credential theft, code disclosure, or further server compromise.
Likely Case
Attackers would access application files, configuration files, or other web-accessible content, potentially obtaining database credentials or other sensitive information.
If Mitigated
With proper file permissions and web server restrictions, impact would be limited to files accessible by the web server user.
🎯 Exploit Status
The exploit has been made public according to the description. Attack requires access to the Code Editor functionality.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: After commit b0fa7ff74a3539c6d37000db152caad572e4c39b
Vendor Advisory: https://github.com/givanz/Vvveb/issues/333
Restart Required: No
Instructions:
1. Update to latest Vvveb version. 2. Apply commit b0fa7ff74a3539c6d37000db152caad572e4c39b. 3. Verify the fix in system/functions.php sanitizeFileName function.
🔧 Temporary Workarounds
Disable Code Editor
allTemporarily disable the Code Editor component to prevent exploitation.
Restrict File Access
allConfigure web server to restrict file access outside web root.
🧯 If You Can't Patch
- Implement strict input validation for file parameters
- Apply web application firewall rules to block path traversal patterns
🔍 How to Verify
Check if Vulnerable:
Check if Vvveb version is 1.0.7.3 or earlier and Code Editor is enabled.Check Version:
Check Vvveb version in admin panel or version file.Verify Fix Applied:
Verify that commit b0fa7ff74a3539c6d37000db152caad572e4c39b is applied in system/functions.php.📡 Detection & Monitoring
Log Indicators:
- Unusual file access patterns in web server logs
- Requests containing '../' or similar path traversal sequences
Network Indicators:
- HTTP requests with file parameter containing path traversal sequences
SIEM Query:
web.url:*../* AND (web.method:POST OR web.method:GET) AND destination.port:80 OR destination.port:443