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CVE-2025-66294

Getgrav Grav code injection

8.8 HIGHPublic exploitEPSS 2.82%
  1. Published1 Dec 2025

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.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredLow
User interactionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

Getgrav Grav≥ 1.7.48 < 1.8.0 · 1.8.0

Remediation

Fixed in
Getgrav Grav≥ 1.8.0

References

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Frequently asked

Is CVE-2025-66294 being actively exploited?

CVE-2025-66294 is not in the CISA KEV catalog. A public exploit reference exists, so treat it as exploitable. Its EPSS exploit probability is 2.82%.

How severe is CVE-2025-66294?

CVE-2025-66294 has a CVSS 3.1 base score of 8.8, rated high. EPSS estimates a 2.82% probability of exploitation.

Which products are affected by CVE-2025-66294?

Affected products include Getgrav Grav.

How do I fix CVE-2025-66294?

Upgrade affected software to a fixed version, for example Getgrav Grav 1.8.0 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2025-66294 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.