CVE-2026-28405

{"id": "CVE-2026-28405", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Secondary", "source": "[email protected]", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 8.0, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 2.1}]}, "published": "2026-03-05T21:16:21.707", "references": [{"url": "https://github.com/MarkUsProject/Markus/commit/55d74f2ddb72d2ec2f29aa2b4cb6b2da10755036", "source": "[email protected]"}, {"url": "https://github.com/MarkUsProject/Markus/releases/tag/v2.9.1", "source": "[email protected]"}, {"url": "https://github.com/MarkUsProject/Markus/security/advisories/GHSA-p5pc-pxrj-3893", "source": "[email protected]"}], "vulnStatus": "Received", "weaknesses": [{"type": "Primary", "source": "[email protected]", "description": [{"lang": "en", "value": "CWE-79"}]}], "descriptions": [{"lang": "en", "value": "MarkUs is a web application for the submission and grading of student assignments. Prior to version 2.9.1, the courses/<:course_id>/assignments/<:assignment_id>/submissions/html_content route reads the contents of a student-submitted file and renders them without sanitization. This issue has been patched in version 2.9.1."}], "lastModified": "2026-03-05T21:16:21.707", "sourceIdentifier": "[email protected]"}