Vulnerability Description
Grav before 2.0.15 contains a stored cross-site scripting vulnerability in the audio and video media rendering through the sourceParsedownElement method. The media URL fragment is concatenated unescaped into rawHtml source elements, allowing attackers to inject arbitrary HTML and JavaScript that executes in viewers' sessions.
CVSS Score
HIGH
Related Weaknesses (CWE)
References
- https://github.com/getgrav/grav/commit/aba291a59cab29ddce491175791888d8d0b65e20
- https://github.com/getgrav/grav/security/advisories/GHSA-6qw9-4vv5-jr97
- https://www.vulncheck.com/advisories/grav-before-stored-xss-via-audio-video-sour
- https://github.com/getgrav/grav/security/advisories/GHSA-6qw9-4vv5-jr97
FAQ
What is CVE-2026-75831?
CVE-2026-75831 is a vulnerability with a CVSS score of 7.6 (HIGH). Grav before 2.0.15 contains a stored cross-site scripting vulnerability in the audio and video media rendering through the sourceParsedownElement method. The media URL fragment is concatenated unescap...
How severe is CVE-2026-75831?
CVE-2026-75831 has been rated HIGH with a CVSS base score of 7.6/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-75831?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.