CVE-2026-24900

{"id": "CVE-2026-24900", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 6.5, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 3.6, "exploitabilityScore": 2.8}]}, "published": "2026-02-09T20:15:56.387", "references": [{"url": "https://github.com/MarkUsProject/Markus/commit/7daed9fd2d44932223798d997b55094a3bff104b", "tags": ["Patch"], "source": "security-advisories@github.com"}, {"url": "https://github.com/MarkUsProject/Markus/releases/tag/v2.9.1", "tags": ["Product", "Release Notes"], "source": "security-advisories@github.com"}, {"url": "https://github.com/MarkUsProject/Markus/security/advisories/GHSA-56gh-8hmq-7q88", "tags": ["Vendor Advisory"], "source": "security-advisories@github.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-639"}]}], "descriptions": [{"lang": "en", "value": "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."}, {"lang": "es", "value": "MarkUs es una aplicaci\u00f3n web para la entrega y calificaci\u00f3n de tareas de estudiantes. Antes de 2.9.1, la ruta courses/&lt;:course_id&gt;/assignments/&lt;:assignment_id&gt;/submissions/html_content aceptaba un par\u00e1metro select_file_id para servir objetos SubmissionFile que conten\u00edan un registro de los archivos entregados por los estudiantes. Este par\u00e1metro no estaba correctamente acotado al usuario solicitante, permitiendo a los usuarios acceder a contenidos arbitrarios de archivos de entrega por ID. Esta vulnerabilidad est\u00e1 corregida en 2.9.1."}], "lastModified": "2026-02-19T20:08:14.250", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:markusproject:markus:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "2D6B2B7B-F46C-4CEE-86D4-B25D3746747A", "versionEndExcluding": "2.9.1"}], "operator": "OR"}]}], "sourceIdentifier": "security-advisories@github.com"}