Is CVE-2026-24900 actively exploited?

CVE-2026-24900 has no public evidence of in-the-wild exploitation as of 2026-02-19.

What is the CVSS score for CVE-2026-24900?

CVE-2026-24900 has a CVSS score of 6.5 (MEDIUM severity). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.

How do I patch CVE-2026-24900?

Patch guidance is available from markusproject security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2026-24900.

Which products are affected by CVE-2026-24900?

1 product: markusproject markus.

CVE-2026-24900 - remediation guidance & executive summary

Description

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.

CVSS Metrics

Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Attack Vector: network
Complexity: low
Privileges: low
User Action: none
Scope: unchanged
Confidentiality: high
Integrity: none
Availability: none
Weaknesses: CWE-639

Metadata

Primary Vendor: MARKUSPROJECT
Published: 2/9/2026
Last Modified: 2/19/2026
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

Affected Products

markusproject : markus

Remediation Guidance

Executive Summary

Cite this page

CVE-2026-24900. CVEDatabase.com. Retrieved 1 May 2026. https://cvedatabase.com/cve/CVE-2026-24900

View on NIST NVD

CVE-2026-24900 vulnerability