What is CVE-2026-61451?

CVE-2026-61451 is a critical-severity vulnerability in Getgrav Grav, classified under URL Redirection to Untrusted Site (Open Redirect). CVSS score: 9.6/10. Published 2026-07-15.

How severe is CVE-2026-61451?

Critical severity. CVSS v3 base score is 9.6 out of 10.

Open Redirect in Getgrav Grav

CVE-2026-61451

The Grav API plugin (grav-plugin-api) before 1.0.4 does not validate the origin of the client-supplied admin_base_url field in the POST /api/v1/auth/forgot-password endpoint. The sanitizeHttpUrl() function only checks that the URL scheme i…

Vulnerability class: Open Redirect

CVSS v3 metric

CVSS v3 base score 9.6 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H.

Affected products

Getgrav Grav — versions 0, 1.0.4

Weakness classification (CWE)

CWE-601 — URL Redirection to Untrusted Site (Open Redirect)

References

disclosure@vulncheck.com (vendor-advisory)
disclosure@vulncheck.com (third-party-advisory)

Frequently asked questions

What is CVE-2026-61451?: CVE-2026-61451 is a critical-severity vulnerability in Getgrav Grav, classified under URL Redirection to Untrusted Site (Open Redirect). CVSS score: 9.6/10. Published 2026-07-15.
How severe is CVE-2026-61451?: Critical severity. CVSS v3 base score is 9.6 out of 10.