Critical · 9.8 CVE-2026-97283 EUVD-2026-92590GHSA-52qx-gr3f-hfqm

WordPress Advanced Post Manager plugin <= 4.5.5 - PHP Object Injection vulnerability

Published Oct 5, 2026 · Updated Oct 5, 2026 · Assigned by Patchstack

Vendor: Liquid Web / StellarWP Product: Advanced Post Manager

Description

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

Vendor	Product	Affected	Fixed
Liquid Web / StellarWP	Advanced Post Manager	≤ 4.5.5	—

References

https://patchstack.com/database/wordpress/plugin/advanced-post-manager/vulnerability/wordpress-advanced-post-manager-plugin-4-5-5-php-object-injection-vulnerability?_s_id=cve vdb-entry