Vulnerability Description
Grav before 2.0.15 contains a stored cross-site scripting vulnerability in the detectXss() function where unpaired quotes in unquoted attribute values bypass event-handler detection. Authenticated editors can inject event handlers like onerror= that pass validation and execute in visitor browsers when page content is rendered.
CVSS Score
HIGH
Related Weaknesses (CWE)
References
- https://github.com/getgrav/grav/security/advisories/GHSA-vfmf-q6x9-cw96
- https://www.vulncheck.com/advisories/grav-before-stored-xss-via-detectxss-quote-
- https://github.com/getgrav/grav/security/advisories/GHSA-vfmf-q6x9-cw96
FAQ
What is CVE-2026-75828?
CVE-2026-75828 is a vulnerability with a CVSS score of 8.7 (HIGH). Grav before 2.0.15 contains a stored cross-site scripting vulnerability in the detectXss() function where unpaired quotes in unquoted attribute values bypass event-handler detection. Authenticated edi...
How severe is CVE-2026-75828?
CVE-2026-75828 has been rated HIGH with a CVSS base score of 8.7/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-75828?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.