CVE-2026-25057

CRITICAL EPSS 37.1%
Published Feb 9, 20264mo ago · Modified Feb 19, 20264mo ago
9.1 CVSS 3.1
Critical
Find Similar
Published Feb 9, 2026 4mo ago
Last Modified Feb 19, 2026 4mo ago

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 Details

Base Score
9.1
Exploitability
2.3
Impact
6.0
Vector string
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required High
User Interaction None
Scope Changed
Confidentiality High
Integrity High
Availability High

Threat Intelligence

EPSS Exploit Probability
37.1% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-23

Affected Products 1

VendorProductVersionRange
markusprojectmarkus* <2.9.1

References 3

  • github.com https://github.com/MarkUsProject/Markus/commit/0ca002a1f0071c7a00dbb2ed34fede57323c5dc7
    Patch
  • github.com https://github.com/MarkUsProject/Markus/releases/tag/v2.9.1
    ProductRelease Notes
  • github.com https://github.com/MarkUsProject/Markus/security/advisories/GHSA-mccg-p332-252h
    Vendor Advisory

Remediation

  • github.com https://github.com/MarkUsProject/Markus/commit/0ca002a1f0071c7a00dbb2ed34fede57323c5dc7
    Patch