CVE-2026-85602criticalCWE-807

CVE-2026-85602: fallo crítico en getgrav grav-plugin-form

Grav Form Plugin before 9.1.20 reCAPTCHA v3 Authentication Bypass

Publicada el · Actualizada el

Seguir esta CVE+ Monitorear grav-plugin-form

Aviso por correo cuando entre en el KEV, tenga PoC pública o suba de nota.

28Vexday Risk Score

Sin señal de explotación. Ningún artefacto público de explotación conocido hasta ahora.

ssvc Trackcvss 9.3epss 0.4%
The Grav Form plugin (getgrav/grav-plugin-form) versions 8.0.6 through 9.1.19 select the reCAPTCHA version to validate based solely on which response field key is present in the submitted payload. On a site configured for reCAPTCHA v3, an anonymous attacker can place their v3 token under the v2 field name (g-recaptcha-response instead of token), causing validation to use the v2 branch, which never applies the score threshold or verifies the expected action. This results in a complete bypass of reCAPTCHA v3 bot protection. The issue is fixed in version 9.1.20.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Productos afectados
getgrav · grav-plugin-form
CVEs relacionadas — getgrav grav-plugin-form

En el mismo producto, de las más peligrosas a las menos.

CVE-2026-42845HIGHGrav: Anonymous Page Content Overwrite via Form File Upload filename OverrideEPSS 0.7%CVE-2026-86194MEDIUMGrav Form Plugin before 9.1.22 Cross-Page Form ExecutionEPSS 0.6%CVE-2026-69087HIGHGrav Form Plugin before 9.1.13 Open Redirect via form.value() TwigEPSS 0.4%CVE-2026-42842MEDIUMgrav-plugin-form: XSS via Taxonomy Field Values in Admin PanelEPSS 0.2%