CVE-2025-48880
📋 TL;DR
FreeScout versions before 1.8.181 contain a race condition vulnerability when administrators delete users. This could allow attackers to cause unexpected behavior or potentially escalate privileges. Only systems running vulnerable FreeScout versions with administrative access are affected.
💻 Affected Systems
- FreeScout
📦 What is this software?
Freescout by Freescout
⚠️ Risk & Real-World Impact
Worst Case
Privilege escalation allowing attackers to gain administrative access or cause data corruption through race condition exploitation during user deletion.
Likely Case
Application instability, failed user deletions, or inconsistent user data states leading to operational disruption.
If Mitigated
Minor application errors or failed operations with no security impact when proper access controls limit administrative functions.
🎯 Exploit Status
Exploitation requires administrative access and precise timing to trigger the race condition.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 1.8.181
Vendor Advisory: https://github.com/freescout-help-desk/freescout/security/advisories/GHSA-9vf2-mg4j-4v7f
Restart Required: Yes
Instructions:
1. Backup your FreeScout installation and database. 2. Update to version 1.8.181 via the built-in updater or manual installation. 3. Restart the web server and any related services. 4. Verify the update was successful.
🔧 Temporary Workarounds
Restrict Administrative Access
allLimit administrative account access to trusted users only and implement strong authentication.
Disable User Deletion
allTemporarily disable user deletion functionality in administrative interface if not required.
🧯 If You Can't Patch
- Implement strict access controls to limit administrative functions to essential personnel only.
- Monitor administrative actions and user deletion events for suspicious patterns.
🔍 How to Verify
Check if Vulnerable:
Check FreeScout version in admin panel or via the application's version file.Check Version:
Check admin panel or view /app/version.php file contents.Verify Fix Applied:
Confirm version is 1.8.181 or later in admin panel and test user deletion functionality.📡 Detection & Monitoring
Log Indicators:
- Multiple rapid user deletion attempts
- Failed user deletion operations
- Race condition error messages
Network Indicators:
- Unusual administrative access patterns
- Bursts of administrative API requests
SIEM Query:
Search for multiple DELETE requests to user management endpoints within short timeframes.