CVE-2026-25057

Summary

MarkUs is a web application for the submission and grading of student assignments. Prior to 2.9.1, instructors are able to upload a zip file to create an assignment from an exported configuration (courses/<:course_id>/assignments/upload_config_files). The uploaded zip file entry names are used to create paths to write files to disk without checking these paths. This vulnerability is fixed in 2.9.1.

Affected Software

VendorProductVersion RangeStatus
MarkUsProjectMarkus< 2.9.1affected

Weaknesses

  • CWE-23: CWE-23: Relative Path Traversal

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: total

References