Vulnerability in Getgrav Grav
CVE-2026-75574
The Grav Email plugin (getgrav/grav-plugin-email) before 4.2.2 renders page-editor-controlled Email action parameters as unsandboxed Twig templates. An authenticated remote user with only api.access and api.pages.write permissions can place a Twig expression in header.form.process.email.body, publish the page, and submit the form to execute an arbitrary operating-system command as the account running PHP.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.007 (49.9th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 50th percentile — 49.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.007 · change: +0.003
Affected products
Weakness classification (CWE)
References
- github.com/getgrav/grav/security/advisories/GHSA-gh8j-q67c-j53f (vendor-advisory)
- www.vulncheck.com/advisories/grav-before-remote-code-execution-via-email-twig (third-party-advisory)
Frequently asked questions
- What is CVE-2026-75574?
- CVE-2026-75574 is a high-severity vulnerability in Getgrav Grav, classified under Improper Neutralization of Special Elements Used in a Template Engine. CVSS score: 8.8/10. Published 2026-08-25.
- How severe is CVE-2026-75574?
- High severity. CVSS v3 base score is 8.8 out of 10.