{"id":"CVE-2026-112783","title":"OpenCATS before 0.10.0 Missing Authorization via Activity AJAX Endpoints","summary":"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 …","severity":"medium","cvss":4.3,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N","cvssSource":"cna","cwe":["CWE-862"],"vendor":"opencats","product":"OpenCATS","affected":["OpenCATS < 0.10.0"],"published":"2026-10-20","updated":"2026-10-20","sourceUpdated":"2026-10-20T10:41:32.643Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-112783","references":[{"url":"https://github.com/opencats/OpenCATS/issues/720"},{"url":"https://github.com/opencats/OpenCATS/commit/aa3b414c3672f5010ca26c44192aa8e72d3735bd"},{"url":"https://github.com/opencats/OpenCATS/releases/tag/v0.10.0","label":"OpenCATS v0.10.0 Release Notes"},{"url":"https://github.com/opencats/OpenCATS/blob/5781f41814f09493c7ce05b9251b5e09c1aff0cd/ajax/deleteActivity.php"},{"url":"https://github.com/opencats/OpenCATS/blob/5781f41814f09493c7ce05b9251b5e09c1aff0cd/ajax/editActivity.php"},{"url":"https://www.vulncheck.com/advisories/opencats-before-0.10.0-missing-authorization-via-activity-ajax-endpoints","label":"VulnCheck Advisory: OpenCATS before 0.10.0 Missing Authorization via Activity AJAX Endpoints"}],"tags":["cve.org"],"ingestedAt":"2026-10-20T12:05:07.341Z","slug":"CVE-2026-112783","body":"## Overview\n\nOpenCATS 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.\n\n## Affected\n\n- `OpenCATS < 0.10.0`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":24,"depthScoreParts":{"impact":23.7,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}