CVE-2026-69087
Grav Form Plugin before 9.1.13 Open Redirect via form.value() Twig
- State
- Published
- Severity
- 7.1 High
- Published
- Aug 3, 2026
- Updated
- Aug 3, 2026
- Reserved
- Aug 3, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 7.1 High | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N | VulnCheck |
| 3.1 | 6.5 Medium | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N | VulnCheck |
Weaknesses
- CWE-601 URL Redirection to Untrusted Site ('Open Redirect')
Affected Products
| Product | Versions |
|---|---|
grav-plugin-formgetgrav |
|
References
- GitHub Security Advisory (GHSA-j2j9-gp72-wqvm)vendor-advisory
- VulnCheck Advisory: Grav Form Plugin before 9.1.13 Open Redirect via form.value() Twigthird-party-advisory
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