CVE-2025-25825
📋 TL;DR
This cross-site scripting vulnerability in Emlog Pro v2.5.4 allows attackers to inject malicious scripts into article category titles, which then execute in victims' browsers when viewing affected pages. The vulnerability affects administrators and users who access the compromised content management system interface. Attackers could steal session cookies, redirect users, or perform actions on behalf of authenticated users.
💻 Affected Systems
- Emlog Pro
📦 What is this software?
Emlog by Emlog
⚠️ Risk & Real-World Impact
Worst Case
Attackers could steal administrator session cookies, gain full administrative access to the CMS, deface websites, install backdoors, or pivot to attack other systems.
Likely Case
Attackers would steal user session cookies, redirect visitors to malicious sites, or perform limited administrative actions if targeting logged-in users.
If Mitigated
With proper input validation and output encoding, the attack would fail to execute scripts, limiting impact to data corruption at most.
🎯 Exploit Status
Exploitation requires authentication with article category modification privileges. The GitHub reference contains proof-of-concept details.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: v2.5.5 or later
Vendor Advisory: https://www.emlog.net/
Restart Required: No
Instructions:
1. Backup your Emlog Pro installation and database. 2. Download the latest version from the official website. 3. Replace all files except config.php and uploads directory. 4. Run the upgrade script if provided.
🔧 Temporary Workarounds
Input Validation Filter
allAdd server-side validation to strip HTML/script tags from article category title inputs
Output Encoding
allImplement proper HTML entity encoding when displaying article category titles
🧯 If You Can't Patch
- Restrict access to article category management to trusted administrators only
- Implement a web application firewall (WAF) with XSS protection rules
🔍 How to Verify
Check if Vulnerable:
Check if Emlog Pro version is exactly 2.5.4 by examining the version file or admin panelCheck Version:
Check admin panel or examine /admin/views/version.php fileVerify Fix Applied:
After patching, attempt to inject basic XSS payloads into article category titles and verify they are properly sanitized📡 Detection & Monitoring
Log Indicators:
- Unusual POST requests to category management endpoints with script tags in parameters
- Multiple failed login attempts followed by category modifications
Network Indicators:
- HTTP requests containing script tags in category title parameters
- Unexpected redirects from category pages
SIEM Query:
source="web_logs" AND (uri_path="/admin/category" OR uri_path="/admin/save_category") AND (param="title" CONTAINS "<script>" OR param="title" CONTAINS "javascript:")