PT-2025-48554 · Grav · Grav

Published 2025-12-01 · Updated 2025-12-02 · CVE-2025-66294

Positive Technologies (AI Summary)

CVSS v3.1

8.8

High

Base vector

AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions Grav versions prior to 1.8.0-beta.27

Description Grav is a file-based Web platform susceptible to a Server-Side Template Injection (SSTI) issue. Authenticated attackers possessing editor permissions can execute arbitrary commands on the server. Under specific circumstances, unauthenticated attackers may also be able to exploit this issue. The root cause is weak regex validation within the cleanDangerousTwig method. This can potentially lead to remote code execution.

Recommendations Update to Grav version 1.8.0-beta.27 or later.

Exploit

Fix

RCE

Code Injection

Weakness Enumeration

CWE-1336

CWE-94

Related Identifiers

CVE-2025-66294

GHSA-662M-56V4-3R8F

Affected Products

Grav

References · 10

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/66xxx/CVE-2025-66294.json · Exploit
• https://github.com/getgrav/grav/commit/e37259527d9c1deb6200f8967197a9fa587c6458 · Patch
• https://github.com/getgrav/grav/security/advisories/GHSA-662m-56v4-3r8f · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2025-66294 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2025-66294 · Security Note
• https://twitter.com/CVEnew/status/1995602412300623930 · Twitter Post
• https://twitter.com/CCBalert/status/1995904467921690697 · Twitter Post
• https://t.me/CVEtracker/38586 · Telegram Post
• https://reddit.com/r/VulnMatter/comments/1pchx5n/resumen_diario_de_vulnerabilidades_02122025 · Reddit Post
• https://twitter.com/VulmonFeeds/status/1995717143325819062 · Twitter Post