CVE-2026-75107: Grav Form Plugin before 9.1.19 Stored XSS via Field Properties

Severity: medium (CVSS 5.4 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-08-18 · updated 2026-10-22
Weakness: CWE-79

Description

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.

Affected products

getgrav grav: before 9.1.19 — fixed in 9.1.19

How to fix

Upgrade to a fixed version: getgrav grav 9.1.19. Check the vendor advisory for mitigations.

References

https://github.com/getgrav/grav/security/advisories/GHSA-5jrr-wfgh-mhg9
https://www.vulncheck.com/advisories/grav-form-plugin-before-stored-xss-via-field-properties
https://github.com/getgrav/grav/security/advisories/GHSA-5jrr-wfgh-mhg9

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