In BlackCat CMS 1.2, remote authenticated users can upload any file via the media upload function in backend/media/ajax_upload.php, as demonstrated by a ZIP archive that contains a .php file.
Severity
CVSS 3.0
6.5 medium
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
EPSS
0.8% chance of exploitation in the next 30 days; higher than 57% of CVEs (scores of 2026-10-31)