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CVE-2025-34086

Estado: AnalizadaAlta (7.5)—

Bolt CMS versions 3.7.0 and earlier contain a chain of vulnerabilities that together allow an authenticated user to achieve remote code execution. A user with valid credentials can inject arbitrary PHP code into the displayname field of the user profile, which is rendered unsanitized in backend templates. The attacker can then list and rename cached session files via the /async/browse/cache/.sessions and /async/folder/rename endpoints. By renaming a .session file to a path under the publicly accessible /files/ directory with a .php extension, the attacker can turn the injected code into an executable web shell. Finally, the attacker triggers the payload via a crafted HTTP GET request to the rogue file.

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NOTE: The vendor announced that Bolt 3 reached end-of-life after 31 December 2021.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

🎯 Técnicas ATT&CK

Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.

Usuario autenticado inyecta PHP en perfil (UI:R), genera web shell y ejecuta comandos. CWE-94 (ejecución de código) y CWE-434 (carga de fichero) confirman RCE. PR:L requiere credenciales válidas; UI:P indica interacción para activar (GET request).

Inferido por nuestro agente de análisis a partir de la descripción oficial, el vector CVSS y la CWE, y comprobado por un supervisor. Puede contener errores.

🛡️ Mitigaciones ATT&CK que cubren estas técnicas

Execution PreventionDisable or Remove Feature or ProgramApplication Isolation and SandboxingExploit ProtectionUpdate SoftwareUser Account Management

Tecnologías afectadas (1)

Boltcms — Bolt

CWE

Referencias

JSON original (NVD)

Mostrar
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