CVE-2025-3951: wp-optimize vulnerability

What is known

The WP-Optimize WordPress plugin before 4.2.0 does not properly escape user input when checking image compression statuses, which could allow users with the administrator role to conduct SQL Injection attacks in the context of Multi-Site WordPress configurations.

Business impact

Successful exploitation of CVE-2025-3951, a medium vulnerability (CVSS 4.1) affecting wp-optimize, 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 wp-optimize 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