CVE-2026-69087

Grav Form Plugin before 9.1.13 Open Redirect via form.value() Twig

MEDIUM
6.5
CVSS Score
Published: August 3, 2026 at 01:20 PM UTC
Updated: October 23, 2026 at 09:10 PM UTC
2 products affected across 1 vendorGravGrav Plugin Form

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Severity
MEDIUM6.5
Exploit prediction
EPSS 0.4%
SSVC
PoC

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

95%
v < 9.1.13
Affected range stops below 9.1.13, so it looks safe — our inference, not a vendor statement
0 ≤ v < 9.1.130
Vendor states this is fixed in 9.1.13 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

SSVC — Action Prioritization

SSVCPoCNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

6.5MEDIUMVulnCheck
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-601

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