CVE-2026-42609highCWE-269CWE-285CWE-639CWE-837

CVE-2026-42609: falha de alta gravidade em getgrav grav

Grav: Administrative Account Disruption and Privilege De-escalation via User Overwrite Logic

Publicada em · Atualizada em

Seguir esta CVE+ Monitorar grav+ Monitorar getgrav/grav

Aviso por e-mail quando ela entrar no KEV, ganhar PoC pública ou subir de nota.

21Vexday Risk Score

Sem sinal de exploração. Nenhum artefato público de exploração conhecido até agora.

ssvc Trackcvss 8.1epss 0.5%
Grav is a file-based Web platform. Prior to 2.0.0-beta.2, a business logic vulnerability in the Grav Admin Panel allows a low-privileged user (with only user creation permissions) to overwrite existing accounts, including the primary administrator. By creating a new user with a username that already exists, the system updates the existing account's metadata and permissions instead of rejecting the request. This leads to a Denial of Service (DoS) on administrative functions and Privilege De-escalation of the root account. This vulnerability is fixed in 2.0.0-beta.2.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
Produtos afetados
getgrav · grav
CVEs relacionadas — getgrav grav

No mesmo produto, das mais perigosas para as 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%