CVE-2026-28405

Publication date

2026-03-05 20:06:13

Family

GitHub_M

State

PUBLISHED

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.