CVE-2026-85598

Description

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.

CVSS Vector

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