Security Advisory

CVE-2026-28405

CVE vulnerability detail — eXtreme Datacenter Security Operations

Published 2026-03-05 20:06:13

Last updated 2026-03-06 17:04:05

Assigner 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.

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