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.
CVE-2026-7567 is a critical severity with CVSS 9.8 Vulnerability issue affecting the Plugin Temporary Login. It affects Versions up to 1.0.0 and is fixed in 1.1.0.
CVE-2026-7567 is tracked for the Plugin Temporary Login as critical severity with CVSS 9.8. The affected range is Versions up to 1.0.0. Update Temporary Login to 1.1.0 or newer where that version is compatible with the site.
| Software Type | Plugin |
|---|---|
| Software Slug |
temporary-login
View on wordpress.org
|
| CVE | CVE-2026-7567 |
| Patched Versions |
1.1.0
|
| Affected Versions |
Versions up to 1.0.0
|
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