CVE-2026-25057: 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…

PriorityP350critical9.1CVSS 3.1

AVNACLPRHUINSCCHIHAH

EPSS

0.47%

37.1th percentile

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//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

1 ranges

Vendor	Product	Version range	Fixed in
markusproject	markus	< 2.9.1	2.9.1

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