Subrion CMS Cross-site Scripting
Date: 2022-05
Affected: composer/intelliants/subrion
Attack vector: xss
Category: vulnerability-disclosure
Severity: Medium
CVE: CVE-2018-14840
CWE: CWE-79
CVSS: 6.1 (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N)

`uploads/.htaccess` in Subrion CMS 4.2.1 allows XSS because it does not block .html file uploads (but does block, for example, .htm file uploads).


Mitigations:

Architectural layers (MAESTRO):