CVE-2026-86197mediumCWE-79

CVE-2026-86197: fallo de gravedad media en getgrav grav

Grav before 2.0.20 Cross-Site Scripting via Assets Sandbox

Publicada el · Actualizada el

Seguir esta CVE+ Monitorear grav+ Monitorear getgrav/grav

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

13Vexday Risk Score

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

ssvc Trackcvss 5.1epss 0.4%
Grav before 2.0.20 contains a cross-site scripting vulnerability in the Twig sandbox policy that allowlists addJs and addCss methods on Grav\Common\Assets without proper output escaping. Page editors can inject arbitrary script by registering malicious assets or injecting attributes, which are rendered unescaped into document head tags and executed for all visitors including administrators.
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N
Productos afectados
getgrav · grav
CVEs relacionadas — getgrav grav

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

CVE-2024-27921HIGHGrav File Upload Path Traversal vulnerabilityEPSS 60.6%CVE-2021-29440HIGHTwig allowing dangerous PHP functions by defaultEPSS 29.9%CVE-2024-28116HIGHServer-Side Template Injection (SSTI) with Grav CMS security sandbox bypassEPSS 5.8%CVE-2026-61450HIGHGrav before 2.0.2 Config Exfiltration via offsetGet FilterEPSS 5.4%CVE-2023-34448HIGHGrav Server-side Template Injection (SSTI) via Twig Default FiltersEPSS 4.5%CVE-2026-42607CRITICALGrav: Remote Code Execution (RCE) via Malicious Plugin ZIP Upload in Direct Install FeatureEPSS 4.4%