XSS in Getgrav Grav
CVE-2026-75107
Grav Form Plugin before 9.1.19 fails to escape field-definition properties including prepend, append, spacer text, section text, and select option labels in form templates. Attackers with form authoring privileges can inject arbitrary HTML and JavaScript that executes for all form visitors through unescaped |raw filters and unquoted attributes.
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.002 (13.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 13th percentile — 13.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: +0.001
Affected products
Weakness classification (CWE)
References
- GitHub Security Advisory (GHSA-5jrr-wfgh-mhg9) (vendor-advisory)
- VulnCheck Advisory: Grav Form Plugin before 9.1.19 Stored XSS via Field Properties (third-party-advisory)
Frequently asked questions
- What is CVE-2026-75107?
- CVE-2026-75107 is a medium-severity vulnerability in Getgrav Grav, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2026-08-18.
- How severe is CVE-2026-75107?
- Medium severity. CVSS v3 base score is 5.4 out of 10.