SEPTEMBER 19, 2026
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Case File

CVE-2026-66400

MEDIUM · CVSS 4.8 EPSS 0.15% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-07-29 · Last synced 2026-08-28

CyberRota Analysis

AI-Generated

Grav Login Plugin versions prior to 3.8.13 are vulnerable due to an insufficient session expiration flaw in the TokenStorage.php file, allowing attackers to exploit improperly validated Remember Me token timestamps. This vulnerability enables unauthorized users to maintain authenticated sessions indefinitely by leveraging captured Remember Me cookies, bypassing the intended timeout settings. Organizations using affected versions of the Grav Login Plugin should prioritize patching to mitigate the risk of unauthorized access.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

GitHub PoC Links

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2026-66400
Severity
MEDIUM
CVSS
4.8
EPSS
0.15%

Original NVD Description

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.