Detections
Analytics
CVE-2026-28405
medium
Description
MarkUs is a web application for the submission and grading of student assignments. Prior to version 2.9.1, the courses/<:course_id>/assignments/<:assignment_id>/submissions/html_content route reads the contents of a student-submitted file and renders them without sanitization. This issue has been patched in version 2.9.1.
References
https://github.com/MarkUsProject/Markus/security/advisories/GHSA-p5pc-pxrj-3893
https://github.com/MarkUsProject/Markus/releases/tag/v2.9.1
https://github.com/MarkUsProject/Markus/commit/55d74f2ddb72d2ec2f29aa2b4cb6b2da10755036