OpenCATS through 0.9.6 allows remote attackers to execute arbitrary code by uploading an executable file via lib/FileUtility.php.
https://youtu.be/isiDISag7CM
https://github.com/opencats/OpenCATS/commit/b1af3bde1f68bec1c703ad66a3e390f15ed8ebe1
https://github.com/Nickguitar/RevCAT
Source: Mitre, NVD
Published: 2021-12-15
Updated: 2026-06-17
Base Score: 10
Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C
Severity: Critical
Base Score: 9.8
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS: 0.11133