CVE-2026-112783CWE-862broken-access-control

CVE-2026-112783

Medium · published October 20, 2026

CVSS v3.1
4.3
EPSS
0%
Percentile
9.8
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
4.3 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
CVSS v4.0
5.3 · CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
EPSS
0.00204 · 9.8th percentile
Weakness
CWE-862 · Missing Authorization
Published
2026-10-20T15:17Z
References (6)
https://github.com/opencats/OpenCATS/blob/5781f41814f09493c7ce05b9251b5e09c1aff0cd/ajax/deleteActivity.php · [email protected]https://github.com/opencats/OpenCATS/blob/5781f41814f09493c7ce05b9251b5e09c1aff0cd/ajax/editActivity.php · [email protected]https://github.com/opencats/OpenCATS/commit/aa3b414c3672f5010ca26c44192aa8e72d3735bd · [email protected]https://github.com/opencats/OpenCATS/issues/720 · [email protected]https://github.com/opencats/OpenCATS/releases/tag/v0.10.0 · [email protected]https://www.vulncheck.com/advisories/opencats-before-0.10.0-missing-authorization-via-activity-ajax-endpoints · [email protected]
EPSS history
Timeline
  • 22 OCT 03:29Z
    EPSS moved — → 0%
    epss
  • 20 OCT 10:41Z
    OpenCATS before 0.10.0 Missing Authorization via Activity AJAX Endpoints
    cvelistv5
  • 20 OCT 10:41Z
    OpenCATS before 0.10.0 Missing Authorization via Activity AJAX Endpoints
    cvelistv5