CVE-2026-90953: Unknown Image Optimizer

Medium severity, CVSS 4.3. EPSS: 0.2% chance of exploitation in the next 30 days.

The Image Optimizer WordPress plugin before 1.7.7 does not enforce its intended capability check on several of its read REST routes, allowing any authenticated user to read attachment metadata and site-wide statistics that should be restricted to administrators.

Affected products

• Unknown Image Optimizer: before 1.7.7 (fixed in 1.7.7)

Published 2026-09-30. Last modified 2026-09-30.