CVE-2025-15244
📋 TL;DR
A race condition vulnerability exists in PHPEMS's Purchase Request Handler component, allowing attackers to potentially manipulate transaction states through concurrent requests. This affects PHPEMS users up to version 11.0. Successful exploitation could lead to unauthorized point manipulation or purchase state changes.
💻 Affected Systems
- PHPEMS
📦 What is this software?
Phpems by Phpems
⚠️ Risk & Real-World Impact
Worst Case
Unauthorized point accumulation, purchase manipulation, or financial loss through race condition exploitation in transaction processing.
Likely Case
Limited point manipulation or inconsistent purchase states due to the high complexity required for successful exploitation.
If Mitigated
Minimal impact with proper transaction locking mechanisms and monitoring in place.
🎯 Exploit Status
Exploit requires precise timing and multiple concurrent requests; disclosed publicly but difficult to weaponize reliably.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: Not available
Restart Required: No
Instructions:
1. Monitor vendor channels for official patch. 2. Consider upgrading to version 11.1+ if available. 3. Apply workarounds until patch is released.
🔧 Temporary Workarounds
Implement Transaction Locking
allAdd proper locking mechanisms to purchase request handling to prevent race conditions.
Modify PHPEMS source code to implement database or application-level locks for purchase transactions
Rate Limiting
allImplement rate limiting on purchase endpoints to reduce concurrent request opportunities.
Configure web server or application rate limiting for /purchase endpoints
🧯 If You Can't Patch
- Monitor purchase logs for unusual concurrent activity patterns
- Implement additional validation checks in purchase workflow
🔍 How to Verify
Check if Vulnerable:
Check PHPEMS version; if ≤11.0 and purchase functionality enabled, system is vulnerable.Check Version:
Check PHPEMS configuration files or admin panel for version informationVerify Fix Applied:
Test purchase endpoint with concurrent requests to ensure consistent transaction states.📡 Detection & Monitoring
Log Indicators:
- Multiple concurrent purchase requests from same user/session
- Unusual point balance changes without corresponding purchases
Network Indicators:
- High frequency of POST requests to purchase endpoints
- Unusual timing patterns in purchase transactions
SIEM Query:
source="phpems_logs" AND (message="purchase" OR message="points") | stats count by src_ip, session_id | where count > threshold