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.
Metrics
CVSS 3.1 8.7/10
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:NWeakness enumeration
Affected software
No affected versions have been published.
Timeline
- Published
- Aug 18, 2026
- Last modified
- Oct 22, 2026
- NVD status
- Deferred