CVE-2026-16042: Unknown Lws Optimize

Medium severity, CVSS 4.3. EPSS: 0.3% chance of exploitation in the next 30 days.

The LWS Optimize WordPress plugin before 3.4 does not perform a capability check on its cache-clearing actions, allowing any authenticated user, including Subscribers, to flush the site's caches and force repeated cache rebuilds.

Affected products

• Unknown Lws Optimize: before 3.4 (fixed in 3.4)

Published 2026-08-02. Last modified 2026-08-26.