CVE-2026-97283: Liquid Web / Stellarwp Advanced Post Manager

Critical severity, CVSS 9.8. EPSS: 0.4% chance of exploitation in the next 30 days.

Deserialization of Untrusted Data vulnerability in Liquid Web / StellarWP Advanced Post Manager advanced-post-manager allows Object Injection.This issue affects Advanced Post Manager: from n/a through 4.5.5.

Affected products

• Liquid Web / Stellarwp Advanced Post Manager: up to and including 4.5.5

Published 2026-10-05. Last modified 2026-10-06.