CVE-2026-97283criticalCWE-502

CVE-2026-97283: critical vulnerability in Liquid Web / StellarWP Advanced Post Manager

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

Published 05 Oct 2026

28Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 9.8epss 0.4%

exploitation probability

0.4%top 73% of all CVEs

observed exploitation

nono source reports it

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.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

Liquid Web / StellarWP · Advanced Post Manager

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