CVE-2025-67263
📋 TL;DR
Abacre Retail Point of Sale 14.0.0.396 has a stored XSS vulnerability in the Clients module where malicious scripts can be injected into Name and Surname fields. This allows attackers to execute arbitrary JavaScript in the context of legitimate users when they view client data. All users of this specific version are affected.
💻 Affected Systems
- Abacre Retail Point of Sale
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Attackers could steal session cookies, redirect users to malicious sites, perform actions as authenticated users, or install malware on client systems.
Likely Case
Session hijacking, credential theft, or defacement of the application interface when users view client records.
If Mitigated
Limited to UI disruption or minor data manipulation if input validation blocks most payloads.
🎯 Exploit Status
Exploitation requires authenticated access to create/modify client records. The vulnerability is in stored data that gets rendered without sanitization.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Not available
Vendor Advisory: https://www.abacre.com/retailpointofsale/
Restart Required: No
Instructions:
No official patch available. Monitor vendor website for updates and apply when released.
🔧 Temporary Workarounds
Input Validation at Application Layer
allImplement server-side input validation to sanitize Name and Surname fields before storage.
Output Encoding
allApply proper HTML encoding when rendering client data in web interfaces.
🧯 If You Can't Patch
- Restrict access to the Clients module to only trusted users with minimal necessary permissions.
- Implement a web application firewall (WAF) with XSS protection rules to filter malicious payloads.
🔍 How to Verify
Check if Vulnerable:
Test by entering <script>alert('XSS')</script> in Name or Surname fields and check if script executes when viewing client data.Check Version:
Check Help > About in the application interface for version information.Verify Fix Applied:
Verify that script tags and other HTML/JavaScript payloads are properly sanitized or encoded when displayed.📡 Detection & Monitoring
Log Indicators:
- Unusual client record modifications with script-like content in name fields
- Multiple failed login attempts followed by client data changes
Network Indicators:
- Outbound connections to suspicious domains from POS systems after viewing client data
SIEM Query:
source="pos_logs" AND (message="*<script>*" OR message="*javascript:*")