High severity8.8NVD Advisory· Published Dec 1, 2025· Updated Jun 17, 2026
CVE-2025-66294
CVE-2025-66294
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
getgrav/gravPackagist | < 1.8.0-beta.27 | 1.8.0-beta.27 |
Affected products
29cpe:2.3:a:getgrav:grav:*:*:*:*:*:*:*:*+ 27 more
- cpe:2.3:a:getgrav:grav:*:*:*:*:*:*:*:*range: >=1.7.48,<1.8.0
- cpe:2.3:a:getgrav:grav:1.8.0:beta10:*:*:*:*:*:*
- cpe:2.3:a:getgrav:grav:1.8.0:beta11:*:*:*:*:*:*
- cpe:2.3:a:getgrav:grav:1.8.0:beta12:*:*:*:*:*:*
- cpe:2.3:a:getgrav:grav:1.8.0:beta13:*:*:*:*:*:*
- cpe:2.3:a:getgrav:grav:1.8.0:beta14:*:*:*:*:*:*
- cpe:2.3:a:getgrav:grav:1.8.0:beta15:*:*:*:*:*:*
- cpe:2.3:a:getgrav:grav:1.8.0:beta16:*:*:*:*:*:*
- cpe:2.3:a:getgrav:grav:1.8.0:beta17:*:*:*:*:*:*
- cpe:2.3:a:getgrav:grav:1.8.0:beta18:*:*:*:*:*:*
- cpe:2.3:a:getgrav:grav:1.8.0:beta19:*:*:*:*:*:*
- cpe:2.3:a:getgrav:grav:1.8.0:beta1:*:*:*:*:*:*
- cpe:2.3:a:getgrav:grav:1.8.0:beta20:*:*:*:*:*:*
- cpe:2.3:a:getgrav:grav:1.8.0:beta21:*:*:*:*:*:*
- cpe:2.3:a:getgrav:grav:1.8.0:beta22:*:*:*:*:*:*
- cpe:2.3:a:getgrav:grav:1.8.0:beta23:*:*:*:*:*:*
- cpe:2.3:a:getgrav:grav:1.8.0:beta24:*:*:*:*:*:*
- cpe:2.3:a:getgrav:grav:1.8.0:beta25:*:*:*:*:*:*
- cpe:2.3:a:getgrav:grav:1.8.0:beta26:*:*:*:*:*:*
- cpe:2.3:a:getgrav:grav:1.8.0:beta2:*:*:*:*:*:*
- cpe:2.3:a:getgrav:grav:1.8.0:beta3:*:*:*:*:*:*
- cpe:2.3:a:getgrav:grav:1.8.0:beta4:*:*:*:*:*:*
- cpe:2.3:a:getgrav:grav:1.8.0:beta5:*:*:*:*:*:*
- cpe:2.3:a:getgrav:grav:1.8.0:beta6:*:*:*:*:*:*
- cpe:2.3:a:getgrav:grav:1.8.0:beta7:*:*:*:*:*:*
- cpe:2.3:a:getgrav:grav:1.8.0:beta8:*:*:*:*:*:*
- cpe:2.3:a:getgrav:grav:1.8.0:beta9:*:*:*:*:*:*
- (no CPE)range: < 1.8.0-beta.27
Patches
Vulnerability mechanics
References
4- github.com/getgrav/grav/commit/e37259527d9c1deb6200f8967197a9fa587c6458nvdPatchWEB
- github.com/getgrav/grav/security/advisories/GHSA-662m-56v4-3r8fnvdExploitVendor AdvisoryWEB
- github.com/advisories/GHSA-662m-56v4-3r8fghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2025-66294ghsaADVISORY
News mentions
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