CVE-2025-24289
📋 TL;DR
A CSRF-to-XSS vulnerability in the UCRM Client Signup Plugin allows attackers to execute arbitrary JavaScript in administrator sessions, potentially leading to privilege escalation. This affects administrators of systems running UCRM with the vulnerable plugin (v1.3.4 and earlier). The plugin is disabled by default, reducing exposure.
💻 Affected Systems
- UCRM Client Signup Plugin
⚠️ Manual Verification Required
This CVE does not have specific version information in our database, so automatic vulnerability detection cannot determine if your system is affected.
Why? The CVE database entry doesn't specify which versions are vulnerable (no version ranges provided by the vendor/NVD).
🔒 Custom verification scripts are available for registered users. Sign up free to download automated test scripts.
- Review the CVE details at NVD
- Check vendor security advisories for your specific version
- Test if the vulnerability is exploitable in your environment
- Consider updating to the latest version as a precaution
⚠️ Risk & Real-World Impact
Worst Case
Full administrative account takeover leading to complete system compromise, data theft, or ransomware deployment.
Likely Case
Session hijacking or limited privilege escalation allowing unauthorized access to sensitive client data.
If Mitigated
No impact if plugin remains disabled or administrators avoid malicious links.
🎯 Exploit Status
Requires social engineering to trick administrator into visiting malicious page.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 1.3.5 or later
Vendor Advisory: https://community.ui.com/releases/Security-Advisory-Bulletin-048-048/af007d99-bb6d-4368-a12f-75e84de19e8d
Restart Required: No
Instructions:
1. Log into UCRM admin panel. 2. Navigate to Plugins section. 3. Check for updates to Client Signup Plugin. 4. Update to version 1.3.5 or later. 5. Verify plugin functionality.
🔧 Temporary Workarounds
Disable Plugin
allCompletely disable the vulnerable plugin to eliminate risk.
Navigate to UCRM admin panel > Plugins > Disable Client Signup Plugin
CSRF Protection Headers
allImplement additional CSRF protection at web server level.
Add 'SameSite=Strict' cookie attribute
Implement CSRF tokens globally
🧯 If You Can't Patch
- Keep plugin disabled and use alternative signup methods.
- Implement strict administrator browsing policies and security awareness training.
🔍 How to Verify
Check if Vulnerable:
Check plugin version in UCRM admin panel > Plugins > Client Signup Plugin.Check Version:
No CLI command; check via UCRM web interface.Verify Fix Applied:
Confirm plugin version is 1.3.5 or later in plugin settings.📡 Detection & Monitoring
Log Indicators:
- Unusual administrator session activity
- Multiple failed login attempts followed by success
Network Indicators:
- Suspicious outbound connections from UCRM server
- Unexpected POST requests to plugin endpoints
SIEM Query:
source="ucrm.log" AND ("plugin" OR "signup") AND ("error" OR "unauthorized")