Vulnerability in Getgrav Grav
CVE-2026-75829
grav-plugin-api versions before 1.0.15 fail to validate Twig content in the translate() endpoint, allowing attackers with api.pages.write permission to persist pages with process.twig enabled. Attackers can submit crafted header and content parameters to execute server-side template injection payloads that are evaluated at render time.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N.
EPSS exploit prediction
EPSS: 0.004 (32.6th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 33rd percentile — 32.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.004 · change: +0.001
Affected products
Weakness classification (CWE)
References
- github.com/getgrav/grav/security/advisories/GHSA-w94c-jmg4-w4c9 (vendor-advisory)
- www.vulncheck.com/advisories/grav-plugin-api-before-twig-ssti-via-translate-end… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-75829?
- CVE-2026-75829 is a high-severity vulnerability in Getgrav Grav, classified under Improper Neutralization of Special Elements Used in a Template Engine. CVSS score: 8.1/10. Published 2026-08-18.
- How severe is CVE-2026-75829?
- High severity. CVSS v3 base score is 8.1 out of 10.