CVE-2025-1717: login me now vulnerability

What is known

The Login Me Now plugin for WordPress is vulnerable to authentication bypass in versions up to, and including, 1.7.2. This is due to insecure authentication based on an arbitrary transient name in the 'AutoLogin::listen()' function. This makes it possible for unauthenticated attackers to log in an existing user on the site, even an administrator. Note: this vulnerability requires using a transient name and value from another software, so the plugin is not inherently vulnerable on it's own.

Business impact

Successful exploitation of CVE-2025-1717, a high vulnerability (CVSS 8.1) affecting login me now, may affect the confidentiality, integrity or availability of the vulnerable environment. The exact impact depends on the installed version, exposed interfaces and deployment configuration.

Recommended administrator action

Confirm whether login me now is present and compare installed versions with the vendor advisory and NVD record. Apply the vendor patch or documented mitigation; until remediation is complete, reduce exposure of affected interfaces, review relevant logs and monitor for indicators of exploitation. DataHouse can support version verification, managed patching, network exposure reduction, log review and backup validation for dedicated, cloud and colocated environments.

Sources

• NVD
• Reference
• Reference
• Reference