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 is http/https and never verifies the host against the server's own origin, so an attacker can supply an arbitrary host. As a result, an unauthenticated attacker can cause the password reset email sent to a victim to contain a reset link pointing at an attacker-controlled server; when the victim follows the link, the valid reset token is disclosed to the attacker, enabling full account takeover. The vulnerable base URL can also be influenced via the Referer or Origin headers.

CVSS v3 9.6 CRITICAL

9.6^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 2.8 / Impact : 6.0

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope CHANGED

References

Link	Resource
https://github.com/getgrav/grav/security/advisories/GHSA-5xc4-j99p-cp4m
https://www.vulncheck.com/advisories/grav-before-password-reset-token-poisoning-via-admin-base-url
https://github.com/getgrav/grav/security/advisories/GHSA-5xc4-j99p-cp4m

Configurations

No configuration.

History

15 Jul 2026, 13:17

Type	Values Removed	Values Added
References	~~() https://github.com/getgrav/grav/security/advisories/GHSA-5xc4-j99p-cp4m -~~	() https://github.com/getgrav/grav/security/advisories/GHSA-5xc4-j99p-cp4m -

15 Jul 2026, 12:18

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-07-15 12:18

Updated : 2026-07-15 19:50

NVD link : CVE-2026-61451

Mitre link : CVE-2026-61451

CVE.ORG link : CVE-2026-61451

JSON object : View

Products Affected

No product.

CWE

CWE-601

URL Redirection to Untrusted Site ('Open Redirect')

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