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  4. CVE 2026 97283 wordpress advanced post manager plugin 455 php
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Back to active CVEs
Critical · CVSS 9.8CVE-2026-97283

WordPress Advanced Post Manager plugin <= 4.5.5 - PHP Object Injection vulnerabilityCVE-2026-97283

Answer in brief

CVE-2026-97283 records a Critical severity (CVSS 9.8) vulnerability in WordPress Advanced Post Manager plugin <= 4.5.5 - PHP Object Injection vulnerability. The current sources do not mark it as known exploited. The current feed maps Liquid Web / StellarWP/advanced-post-manager (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Oct 5, 2026Updated Oct 5, 2026Source checked Oct 5, 2026First seen by HOL Oct 5, 2026Material review Oct 5, 2026
Upstream Advisory

Key facts

Risk
Critical · CVSS 9.8
Exploitation
Not marked as known exploited
Affected software
1 mapped package or product
Fix availability
Not reported

Why this deserves its current priority

CVSS is 9.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Liquid Web / StellarWP/advanced-post-manager (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
Liquid Web / StellarWP/advanced-post-managergeneric>=0 <=4.5.5Not reported

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for Liquid Web / StellarWP/advanced-post-manager.
  2. 2Review the reported fix. Source-reported solution: Update the WordPress Advanced Post Manager plugin to the latest available version (at least 4.5.6).

Evidence timeline and material changes

  1. Published upstream

    Oct 5, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Oct 5, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Oct 5, 2026

Sources and claim methodology

  • Source referencepatchstack.com
Upstream source 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.

Quoted source text, attributed separately from HOL analysis.

Related CVEs

  • WordPress WP Spell Check plugin <= 12.1 - PHP Object Injection vulnerabilityAlso CWE-502
  • WordPress VK Google Job Posting Manager plugin <= 1.3.1 - PHP Object Injection vulnerabilityAlso CWE-502
  • WordPress WP Ultimate Exporter plugin <= 3.0 - PHP Object Injection vulnerabilityAlso CWE-502
  • WordPress Sunshine Photo Cart plugin <= 3.7.1 - PHP Object Injection vulnerabilityAlso CWE-502
  • WordPress Simple Event Planner plugin <= 1.5.7 - PHP Object Injection vulnerabilityAlso CWE-502
  • WordPress WP BASE Booking plugin <= 6.4.0 - SQL Injection vulnerabilitySame generic ecosystem

Record context

Vulnerability class
Deserialization
EPSS
Not reported
CWE IDs
CWE-502
Source
CVE List V5
Source checked
Oct 5, 2026
References
1 linked source
Open source record