Vulnerability Description
OpenCATS before 0.12.0 contains a stored cross-site scripting vulnerability that allows a low-privileged authenticated user to inject HTML/JavaScript payloads by setting a Candidate, Company, Contact, Job Order, or List name/title field, which is stored unsanitized and later rendered unescaped in the 'Recent' (MRU) navigation panel displayed on nearly every page via lib/MRU.php's getFormatted() function. Attackers can exploit this by crafting a malicious record name that executes arbitrary JavaScript in the session of any other user, including Site Administrators, who views the record, enabling session/cookie theft and privilege escalation to full administrative control.
CVSS Score
HIGH
Related Weaknesses (CWE)
References
- https://github.com/opencats/OpenCATS/commit/f82e0ee3045845b90b7e111c46f30998496e
- https://github.com/opencats/OpenCATS/commits/master/lib/MRU.php
- https://github.com/opencats/OpenCATS/releases/tag/v0.12.0
- https://www.vulncheck.com/advisories/opencats-before-stored-xss-via-mru-navigati
FAQ
What is CVE-2026-115513?
CVE-2026-115513 is a vulnerability with a CVSS score of 8.7 (HIGH). OpenCATS before 0.12.0 contains a stored cross-site scripting vulnerability that allows a low-privileged authenticated user to inject HTML/JavaScript payloads by setting a Candidate, Company, Contact,...
How severe is CVE-2026-115513?
CVE-2026-115513 has been rated HIGH with a CVSS base score of 8.7/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-115513?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.