CVE-2026-66400

Grav Login Plugin versions before 3.8.13 contain an insufficient session expiration vulnerability in TokenStorage.php where the findTriplet() method fails to properly validate Remember Me token timestamps. Attackers with a captured Remember Me cookie can authenticate indefinitely instead of the configured timeout period, as the expiry check compares an array to a scalar value which always evaluates incorrectly in PHP.

CVSS v3 4.8 MEDIUM

4.8^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.2 / Impact : 2.5

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/getgrav/grav/security/advisories/GHSA-mj78-8gwc-vxjj
https://www.vulncheck.com/advisories/grav-login-plugin-before-insufficient-session-expiration
https://github.com/getgrav/grav/security/advisories/GHSA-mj78-8gwc-vxjj

Configurations

No configuration.

History

No history.

Information

Published : 2026-07-29 14:16

Updated : 2026-07-30 16:41

NVD link : CVE-2026-66400

Mitre link : CVE-2026-66400

CVE.ORG link : CVE-2026-66400

JSON object : View

Products Affected

No product.

CWE

CWE-613

Insufficient Session Expiration

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