CVE-2026-112783OpenCATS before 0.10.0 Missing Authorization via Activity AJAX Endpoints

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.

Data: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Published as the sources state it, in English.

Affected products and versions

References and patches

• https://github.com/opencats/OpenCATS/issues/720 issue-tracking
• https://github.com/opencats/OpenCATS/commit/aa3b414c3672f5010ca26c44192aa8e72d3735bd patch
• OpenCATS v0.10.0 Release Notes release-notes
• https://github.com/opencats/OpenCATS/blob/5781f41814f09493c7ce05b9251b5e09c1aff0cd/ajax/deleteActivity.php technical-description
• https://github.com/opencats/OpenCATS/blob/5781f41814f09493c7ce05b9251b5e09c1aff0cd/ajax/editActivity.php technical-description
• VulnCheck Advisory: OpenCATS before 0.10.0 Missing Authorization via Activity AJAX Endpoints third-party-advisory