CVE-2026-24900

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.

• CWE-639

• https://github.com/MarkUsProject/Markus/commit/7daed9fd2d44932223798d997b55094a3bff104bPatch
• https://github.com/MarkUsProject/Markus/releases/tag/v2.9.1Product, Release Notes
• https://github.com/MarkUsProject/Markus/security/advisories/GHSA-56gh-8hmq-7q88Vendor Advisory

Published

Feb 9, 2026

Last Modified

Jun 17, 2026

Status

Analyzed

• Uncovering a hidden BOLA in Appsmith's snapshot logicStrix autonomously discovered a BOLA/IDOR vulnerability in Appsmith's snapshot deletion path.
• Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
• PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
• AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.

• CVE-2026-24895FrankenPHP is a modern application server for PHP. Prior to …9.8
• CVE-2026-24896OpenEMR is a free and open source electronic health records …6.5
• CVE-2026-24897Erugo is a self-hosted file-sharing platform. In versions up…8.8
• CVE-2026-24898OpenEMR is a free and open source electronic health records …9.8
• CVE-2026-24899Fleet is open source device management software. Prior to ve…7.5
• CVE-2026-2490RustDesk Client for Windows Transfer File Link Following Inf…5.5
• CVE-2026-24901Outline is a service that allows for collaborative documenta…8.8
• CVE-2026-24902TrustTunnel is an open-source VPN protocol with a server-sid…7.1
• CVE-2026-24903OrcaStatLLM Researcher is an LLM Based Research Paper Genera…5.4
• CVE-2026-24904TrustTunnel is an open-source VPN protocol with a rule bypas…5.3
• CVE-2026-24905Inspektor Gadget is a set of tools and framework for data co…7.8
• CVE-2026-24906October is a Content Management System (CMS) and web platfor…5.4