6.5

CVE-2026-24900

MarkUs has a submission-view IDOR exposes all student submissions

MarkUs is a web application for the submission and grading of student assignments. Prior to 2.9.1, the courses/<:course_id>/assignments/<:assignment_id>/submissions/html_content accepted a select_file_id parameter to serve SubmissionFile objects containing a record of files submitted by students. This parameter was not correctly scoped to the requesting user, allowing users access arbitrary submission file contents by id. This vulnerability is fixed in 2.9.1.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
MarkusprojectMarkus Version < 2.9.1
VulnDex Vulnerability Enrichment
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EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.25% 0.161
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
security-advisories@github.com 6.5 2.8 3.6
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
CWE-639 Authorization Bypass Through User-Controlled Key

The system's authorization functionality does not prevent one user from gaining access to another user's data or record by modifying the key value identifying the data.

https://github.com/MarkUsProject/Markus/security/advisories/GHSA-56gh-8hmq-7q88
Vendor Advisory
https://github.com/MarkUsProject/Markus/commit/7daed9fd2d44932223798d997b55094a3bff104b
Patch
https://github.com/MarkUsProject/Markus/releases/tag/v2.9.1
Product
Release Notes