Moodle XSS Vulnerability
Date: 2022-05
Affected: composer/moodle/moodle
Attack vector: xss
Category: vulnerability-disclosure
Severity: Medium
CVE: CVE-2016-9188
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)

Cross-site scripting (XSS) vulnerabilities in Moodle CMS on or before 3.1.2 allow remote attackers to inject arbitrary web script or HTML via the s_additionalhtmlhead, s_additionalhtmltopofbody, and s_additionalhtmlfooter parameters.


Mitigations:

Architectural layers (MAESTRO):