CVE-2026-97283

Deserialization of Untrusted Data vulnerability in Liquid Web / StellarWP Advanced Post Manager…

Risk score: 69/100
CVSS: 9.8 v3.1
Exploit chance (30 days): 0.4%
Published: 5 Oct 2026

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What to know

What it is: 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: See advisory
Fix: Apply the vendor's security update; see the linked advisory.
Exploitation: No known exploitation

Why it is Amber

CVSS 9.8 critical
Remotely exploitable without logging in

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

Original 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.

Last activity 5 Oct 2026. Patch Forecast updates every hour.