CVE-2025-66294

unknown

Published 2025-12-02 · Modified 2025-12-02

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CVSS v3

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CVSS v4 NEW

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not yet in upstream

VIR risk

1.0

Description

Grav is vulnerable to RCE via SSTI through Twig Sandbox Bypass

Predictions

Exploit likelihood

20%

Patch ETA

—

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

No mitigations published for this CVE yet.

The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.

✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here with source_tier=community-verified.

Exploits

Public proof-of-concept code below. AS-IS, for defenders and authorised testing only.

Metasploit modules

exploit_multi/http/grav_twig_ssti_sandbox_bypass_rce rank 600

Grav CMS Twig SSTI Authenticated Sandbox Bypass RCE

Source fetch failed: fetch_error — view the original via the link above.

Package impact

Ecosystem	Package	Vulnerable	Fixed
Packagist	getgrav/grav	`<1.8.0-beta.27`	`1.8.0-beta.27`

References

Community-verified mitigations for this CVE will appear above when contributors publish them.

Verify integrity in audit chain (admin only). AS-IS.