CVE-2025-25988
📋 TL;DR
A Cross-Site Scripting (XSS) vulnerability in HooskCMS v1.8 allows remote attackers to inject malicious scripts via the custom Link title and Title parameters. This could lead to session hijacking, defacement, or denial of service. All users running HooskCMS v1.8 are affected.
💻 Affected Systems
- HooskCMS
📦 What is this software?
Hoosk by Hoosk
⚠️ Risk & Real-World Impact
Worst Case
Attacker steals admin session cookies, takes full control of CMS, defaces website, and installs backdoors.
Likely Case
Attacker injects malicious scripts that steal user sessions or redirect visitors to phishing sites.
If Mitigated
Scripts execute but are blocked by CSP or sanitized by browser protections, causing minimal impact.
🎯 Exploit Status
XSS vulnerabilities are typically easy to exploit with basic web knowledge.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Not available
Vendor Advisory: https://github.com/havok89/Hoosk/issues/67
Restart Required: No
Instructions:
No official patch exists. Apply workarounds or upgrade if a fixed version becomes available.
🔧 Temporary Workarounds
Input Sanitization
allImplement server-side input validation and output encoding for the Link title and Title parameters.
Edit relevant PHP files to apply htmlspecialchars() or filter_var() functions.
Content Security Policy (CSP)
allDeploy a strict CSP header to block inline script execution and restrict script sources.
Add 'Content-Security-Policy: default-src 'self'; script-src 'self'' to web server config.
🧯 If You Can't Patch
- Disable or restrict access to the vulnerable custom Link title and Title parameters.
- Implement a Web Application Firewall (WAF) with XSS protection rules.
🔍 How to Verify
Check if Vulnerable:
Test by injecting a simple script like <script>alert('XSS')</script> into the Link title or Title fields.Check Version:
Check HooskCMS version in admin panel or via 'cat VERSION' file if available.Verify Fix Applied:
Re-test XSS payloads after applying workarounds; scripts should not execute.📡 Detection & Monitoring
Log Indicators:
- Unusual POST requests with script tags in Link title or Title parameters.
Network Indicators:
- HTTP requests containing malicious script payloads in form fields.
SIEM Query:
source="web_logs" AND ("<script" OR "javascript:") AND ("Link title" OR "Title")