VULNERABILITY INTELLIGENCE

CVE-2025-66294

CVSS score8.8 HIGH
EPSS probability3.02%
CISA KEVNot currently listed
Published2025-12-01
Last modified2026-09-26
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Description

Grav is a file-based Web platform. Prior to 1.8.0-beta.27, a Server-Side Template Injection (SSTI) vulnerability exists in Grav that allows authenticated attackers with editor permissions to execute arbitrary commands on the server and, under certain conditions, may also be exploited by unauthenticated attackers. This vulnerability stems from weak regex validation in the cleanDangerousTwig method. This vulnerability is fixed in 1.8.0-beta.27.

Weakness classification

  • security-advisories@github.com: CWE-94

Primary references