CVE-2025-63645
📋 TL;DR
A stored cross-site scripting (XSS) vulnerability in pH7Software pH7-Social-Dating-CMS allows attackers to inject malicious scripts into message content. When another user views the malicious message in their Inbox, the script executes in their browser context. This affects all users of the vulnerable CMS version who use the messaging system.
💻 Affected Systems
- pH7Software pH7-Social-Dating-CMS
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Attackers could steal session cookies, perform account takeover, redirect users to malicious sites, or deploy malware through the victim's browser.
Likely Case
Attackers will typically steal session cookies to hijack user accounts, potentially accessing private messages, personal data, or performing actions as the victim.
If Mitigated
With proper input validation and output encoding, malicious scripts would be rendered harmless as text rather than executable code.
🎯 Exploit Status
Exploitation requires an attacker to have a user account to send messages, but the technical complexity of crafting XSS payloads is low.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: Unknown
Restart Required: No
Instructions:
1. Monitor pH7Software for security updates. 2. Apply any available patch for version 17.9.1 or upgrade to a fixed version when released. 3. Test the fix in a non-production environment first.
🔧 Temporary Workarounds
Implement Content Security Policy (CSP)
allAdd a Content Security Policy header to restrict script execution sources
Add to web server config: Content-Security-Policy: default-src 'self'; script-src 'self'
Input Validation Filter
allAdd server-side filtering to sanitize message content before storage
Implement HTML entity encoding for user input: htmlspecialchars($message, ENT_QUOTES, 'UTF-8')
🧯 If You Can't Patch
- Disable the messaging system feature entirely if not critical
- Implement web application firewall (WAF) rules to block XSS payload patterns
🔍 How to Verify
Check if Vulnerable:
Send a test message containing <script>alert('XSS')</script> and check if it executes when viewed in another user's inboxCheck Version:
Check CMS version in admin panel or via /_protected/app/configs/config.ini version settingVerify Fix Applied:
After applying fixes, test that the same payload appears as plain text rather than executing📡 Detection & Monitoring
Log Indicators:
- Unusually long message content
- Messages containing script tags or JavaScript patterns
- Multiple failed login attempts following message views
Network Indicators:
- Outbound connections to unknown domains after viewing messages
- Unusual cookie/session activity
SIEM Query:
source="web_logs" AND (message_content="*<script>*" OR message_content="*javascript:*")