CVE-2026-85598
Grav versions 2.0.0 through 2.0.17 fail to apply save-time XSS detection to modular pages, allowing authenticated page editors to store Twig-assembled XSS payloads. Attackers with page-edit rights can create modular pages with malicious Twig code that executes in visitor browsers when the parent page is rendered, including in administrator sessions.
- Score
- CVSS 3.1 6.4 Medium
- Status
- Deferred - disclosure@vulncheck.com
- Published
- 2026-09-04
- Last modified
- 2026-09-14
- Weaknesses
- CWE-79
Affected products
References
- https://github.com/getgrav/grav/security/advisories/GHSA-fg8g-663r-f366
- https://www.vulncheck.com/advisories/grav-2.0.0-through-2.0.17-stored-xss-via-modular-pages
