[MEDIUM] Grav vulnerable to Cross-Site Scripting (XSS) Stored endpoint `/admin/pages/[page]` parameter `data[header][template]` in Advanced Tab

PKSA-6ybw-qvkx-41s3 CVE-2025-66310 GHSA-7g78-5g5g-mvfj

Affected package: getgrav/grav

Affected version: <1.8.0-beta.27

Reported by:
GitHub