Vulnerability Description
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.
CVSS Score
CRITICAL
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Markusproject | Markus | < 2.9.1 |
Related Weaknesses (CWE)
References
- https://github.com/MarkUsProject/Markus/commit/0ca002a1f0071c7a00dbb2ed34fede573Patch
- https://github.com/MarkUsProject/Markus/releases/tag/v2.9.1ProductRelease Notes
- https://github.com/MarkUsProject/Markus/security/advisories/GHSA-mccg-p332-252hVendor Advisory
FAQ
What is CVE-2026-25057?
CVE-2026-25057 is a vulnerability with a CVSS score of 9.1 (CRITICAL). 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 (cou...
How severe is CVE-2026-25057?
CVE-2026-25057 has been rated CRITICAL with a CVSS base score of 9.1/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2026-25057?
Check the references section above for vendor advisories and patch information. Affected products include: Markusproject Markus.