CVE-2026-69087 getgrav CVE debrief

Who should care

Organizations using the Grav form plugin, especially those with publicly accessible forms, should be aware of this vulnerability and take steps to mitigate it. This includes updating to version 9.1.13 or later, restricting form input to prevent user-supplied URLs, implementing origin validation for redirects, and monitoring for suspicious redirect activity. Security teams and vulnerability management teams should prioritize this vulnerability and ensure that affected systems are remediated promptly. Additionally, operators of websites using the Grav form plugin should review their form configurations and ensure that they are not inadvertently exposing their users to phishing attacks. Platform administrators should also verify that their systems are running the latest version of the plugin and that all necessary security patches have been applied. Furthermore, security teams should review their monitoring and detection capabilities to ensure that they can detect potential exploitation attempts. Asset inventory management teams should also verify that all affected systems are accounted for and prioritized for remediation. Rollback and change window management teams should plan for the necessary updates and changes to ensure that the vulnerability is remediated with minimal disruption to operations. Source tracking and vulnerability management teams should also review their processes to ensure that they can quickly identify and respond to similar vulnerabilities in the future. Compensating controls, such as web application firewalls, may be necessary to mitigate the vulnerability until a patch can be applied. Monitoring and detection capabilities should be reviewed to ensure that potential exploitation attempts can be detected. Asset inventory and rollback/change window management teams should prioritize the remediation of affected systems. Source tracking and vulnerability management teams should review their processes to ensure that they can quickly identify and respond to similar vulnerabilities in the future. Compensating controls, such as web application firewalls, may be necessary to mitigate the vulnerability until a patch can be applied. Monitoring and Comp

Technical summary

The Grav form plugin (getgrav/grav-plugin-form) before 9.1.13 contains an open redirect vulnerability. The redirect process action evaluates user-supplied form data inside Twig expressions, and Grav::redirect() accepts external URLs without origin validation. This allows an unauthenticated form submitter to cause a 302 redirect to an arbitrary external site, enabling phishing. The vulnerability is particularly severe for organizations with publicly accessible forms, as it can be exploited without authentication.

Defensive priority

Organizations using the Grav form plugin should prioritize updating to version 9.1.13 or later to mitigate the open redirect vulnerability.

Recommended defensive actions

• Update Grav form plugin to version 9.1.13 or later
• Restrict form input to prevent user-supplied URLs
• Implement origin validation for redirects
• Monitor for suspicious redirect activity
• Review form configurations to prevent exposure to phishing attacks
• Verify systems are running the latest version of the plugin and apply necessary security patches
• Review monitoring and detection capabilities to detect potential exploitation attempts

Evidence notes

The CVE-2026-69087 record indicates an open redirect vulnerability in the Grav form plugin before version 9.1.13. The plugin evaluates user-supplied form data inside Twig expressions, and Grav::redirect() accepts external URLs without origin validation. This allows an unauthenticated form submitter to cause a 302 redirect to an arbitrary external site, enabling phishing. Evidence is based on CVE Program and NVD records.

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.