CVE-2026-97283
Received Received - Intake

Deserialization of Untrusted Data in Advanced Post Manager

Publication date: 2026-10-05

Last updated on: 2026-10-05

Assigner: Patchstack

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.

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Meta Information

Published
2026-10-05
Last Modified
2026-10-05
Generated
2026-10-05
AI Q&A
2026-10-05
EPSS Evaluated
N/A
NVD
CVE-2026-97283
EUVD
EUVD-2026-92590

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
Liquid Web / StellarWP Advanced Post Manager 0

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-502 The product deserializes untrusted data without sufficiently ensuring that the resulting data will be valid.

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Executive Summary

This vulnerability is a Deserialization of Untrusted Data issue in the Liquid Web / StellarWP Advanced Post Manager plugin. It allows attackers to inject malicious objects during deserialization, potentially leading to arbitrary code execution or other harmful actions on the server.

Detection Guidance

Check if the Advanced Post Manager plugin version 4.5.5 or below is installed on your WordPress site. Use commands like 'wp plugin list' in WP-CLI or inspect the plugin directory for version details.

Impact Analysis

An attacker could exploit this to execute arbitrary code on your server, take control of your website, or steal sensitive data. The high CVSS score (9.8) indicates a severe risk of remote exploitation without requiring user interaction.

Compliance Impact

This vulnerability could lead to unauthorized data access or modification, violating GDPR (data protection) and HIPAA (health data privacy) requirements. Non-compliance may result in legal penalties, reputational damage, and loss of trust.

Mitigation Strategies

Update the Advanced Post Manager plugin to version 4.5.6 or later immediately. If updating is not possible, consider disabling the plugin temporarily or seek assistance from your hosting provider or web developer.

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