VulnerabilityDeferred

CVE-2026-7567

The Temporary Login plugin for WordPress is vulnerable to Authentication Bypass in versions up to and including 1.0.0.

CRITICAL 9.8EPSS 9.25%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (9.25%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

The Temporary Login plugin for WordPress is vulnerable to Authentication Bypass in versions up to and including 1.0.0. This is due to improper input validation in the maybe_login_temporary_user() function, which fails to verify that the 'temp-login-token' GET parameter is a scalar string before processing it. When the parameter is supplied as an array, PHP's empty() check is bypassed and sanitize_key() returns an empty string, which is then passed as the meta_value to get_users(). WordPress ignores an empty meta_value and returns all users matching the meta_key '_temporary_login_token', allowing authentication without a valid token. This makes it possible for unauthenticated attackers to authenticate as any active temporary login user by sending a single crafted GET request.

CVSS 3.1: 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS: 9.25% probability · 95th percentile
CISA KEV: Not listed
Weakness: CWE-288
Source: security@wordfence.com

References

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.