Simple Stock System CVE-2025-14962

No vendor-released patch or upgraded version has been identified at time of analysis. Immediate remediation requires either upgrading to a patched version from the vendor (if available) or discontinuing use of Simple Stock System 1.0 and migrating to a maintained alternative. As interim compensating controls, implement HTML output encoding/escaping in the /market/chatuser.php file by applying PHP's htmlspecialchars() or htmlentities() functions to all user-supplied input before rendering in HTML contexts; validate and sanitize chat input using allowlists (e.g., permit only alphanumeric characters and select punctuation); deploy a Content Security Policy (CSP) header restricting inline script execution (Content-Security-Policy: default-src 'self'; script-src 'self') to limit XSS payload effectiveness even if injected; and monitor application logs for unusual characters in chatuser.php requests (e.g., <, >, quotes) that may indicate injection attempts. Note: CSP is a detective/preventive control and does not eliminate the vulnerability. The absence of vendor activity suggests this project may be unmaintained - security teams should plan migration timelines accordingly.