Vulnerability · Published Aug 3, 2026 · Assigned by VulnCheck

CVE-2026-69087Grav Form Plugin before 9.1.13 Open Redirect via form.value() Twig

Medium 6.5

In plain English

A medium-severity open redirect in grav-plugin-form from getgrav. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 31% of all known vulnerabilities).

Severity (CVSS 3.1)6.5Medium

Exploit odds (30 days)0.4%top 69.2% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

The Grav form plugin (getgrav/grav-plugin-form) before 9.1.13 contains an open redirect vulnerability. Since v9.1.11, the redirect process action evaluates user-supplied form data inside Twig expressions, and Grav::redirect() accepts external URLs without origin validation. When a form blueprint defines a redirect target such as redirect: "{{ form.value('next') }}" using an attacker-controllable field, an unauthenticated form submitter can supply a value like https://evil.com to cause a 302 redirect to an arbitrary external site, enabling phishing.

Affected products (as reported)

Vendor	Product	Versions
getgrav	grav-plugin-form	0 – before 9.1.13

Weakness: CWE-601 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

References

GitHub Security Advisory (GHSA-j2j9-gp72-wqvm) vendor-advisory
VulnCheck Advisory: Grav Form Plugin before 9.1.13 Open Redirect via form.value() Twig third-party-advisory