In BlackCat CMS 1.2.2, unrestricted file upload is possible in backend\media\ajax_rename.php via the extension parameter, as demonstrated by changing the extension from .jpg to .php.
Severity
CVSS 3.0
8.8 high
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS
1.0% chance of exploitation in the next 30 days; higher than 64% of CVEs (scores of 2026-10-31)