CVE-2026-112783
OpenCATS before 0.10.0 Missing Authorization via Activity AJAX Endpoints
opencats OpenCATS
CVSS
5.3MediumExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)0.20%Chance of exploitation activity in the next 30 days, higher than 9% of CVEs. Scored 23 Oct 2026FIRST EPSS
What fixes it
- 0.10.0OpenCATSCVE List
A fixed version on one release line is not the upgrade target for every line. Check your exact version and any vendor backports.
Description
OpenCATS before 0.10.0 contains a missing authorization vulnerability in ajax/deleteActivity.php and ajax/editActivity.php that allows READ-level users to edit and delete activity entries. Authenticated attackers can supply an arbitrary activityID via GET or POST to modify or delete activity and pipeline history for candidates, contacts and companies.
Text from CVE List
Affected versions 1
- OpenCATSaffected: all versions before 0.10.0CVE List
References 6
- github.com/opencats/OpenCATS/commit/aa3b414c3672f5010ca26c44192aa8e72d3735bdFixvia CVE List
- github.com/opencats/OpenCATS/releases/tag/v0.10.0Fixvia CVE List
- vulncheck.com/advisories/opencats-before-0.10.0-missing-authorization-via-activity-ajax-endpointsAdvisoryvia CVE List
- github.com/opencats/OpenCATS/issues/720Referencevia CVE List
- github.com/opencats/OpenCATS/blob/5781f41814f09493c7ce05b9251b5e09c1aff0cd/ajax/deleteActivity.phpReferencevia CVE List
- github.com/opencats/OpenCATS/blob/5781f41814f09493c7ce05b9251b5e09c1aff0cd/ajax/editActivity.phpReferencevia CVE List