Temporary Login <= 1.0.0 - Authentication Bypass to Account Takeover
| CVE | CVE-2026-7567 |
|---|---|
| CVSS | 9.8 (Critical) |
| Publicly Published | April 30, 2026 |
| Last Updated | May 1, 2026 |
| Researcher |
TANG Cheuk Hei (siunam)
|
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.
Learn more about Authentication Bypass vulnerabilities and how to prevent them.
References
- plugins.trac.wordpress.org
- plugins.trac.wordpress.org
- plugins.trac.wordpress.org
- plugins.trac.wordpress.org
- plugins.trac.wordpress.org
- plugins.trac.wordpress.org
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Vulnerability Details for Temporary Login
| Software Type | Plugin |
|---|---|
| Software Slug | temporary-login (view on wordpress.org) |
| Patched? | Yes |
| Remediation | Update to version 1.1.0, or a newer patched version |
| Affected Version |
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| Patched Version |
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