CVE-2026-110039: Unknown Smush

Low severity, CVSS 2.7. EPSS: 0.2% chance of exploitation in the next 30 days.

The Smush WordPress plugin before 4.3.4 does not restrict changes to a network-wide access setting to network administrators, allowing an administrator of a single site on a multisite network to change it for the entire network.

Affected products

• Unknown Smush: before 4.3.4 (fixed in 4.3.4)

Published 2026-10-16. Last modified 2026-10-16.