Grav Form Plugin before 9.1.22 Cross-Page Form Execution

Advisories

Grav Form Plugin before 9.1.22 Cross-Page Form Execution

severity: medium
date: 9/5/2026
Affecting: grav-plugin-form >= 0, < 9.1.22
CVE: CVE-2026-86194
CWE: CWE-862 Missing Authorization
CVSS: 6.9
CVSS V4 Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N
References: GitHub Security Advisory (GHSA-33m4-m988-5fvh)
Credit: 1K0CT
Description: Grav Form Plugin before 9.1.22 fails to verify page authorization when resolving forms by name across pages, allowing anonymous visitors to execute form actions defined on login-restricted or unpublished pages. Attackers can POST to any public page with a restricted form's name to trigger save, upload, email, or call actions without authentication.

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