CVE-2025-66294: Grav is vulnerable to RCE via SSTI through Twig Sandbox Bypass
getgrav · grav
Affected: getgrav grav · Exploitation: possible (1 to 10%)
Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.
Higher than 87% of scored CVEs
DescriptionCVE.org
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.
Affected products1
From the CVE record. A product or version that is not listed is unknown, not unaffected.
- getgrav · grav< 1.8.0-beta.27
On the Atlas
Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.
- Exploitation
- Possible (1 to 10%). EPSS between 1% and 10%.
- CISA KEV
- Not listed
- Public check
- No public nuclei template
- Weakness
- Improper Neutralization of Special Elements Used in a Template Engine · Command and Code Injection
- Vendor
- getgrav
- Published
- December 2025
CoverageNo articles yet
No CyberSIXT article names CVE-2025-66294 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.