PatchSiren

PatchSiren cyber security CVE debrief

CVE-2026-111396 Liquid Web / StellarWP CVE debrief

The CVE-2026-111396 vulnerability affects WordPress Advanced Post Manager plugin versions up to 4.5.6, allowing attackers to exploit incorrectly configured access control security levels due to a Missing Authorization issue. This HIGH-severity vulnerability, with a CVSS score of 7.1, requires attention from defenders responsible for WordPress installations with this plugin. They should verify access control configurations, update the plugin if possible, and monitor for potential exploitation attempts. The CVE record and source item provide details, but there is limited information on exploitation or specific impacts. Defenders need to assess exposure and prioritize verification and

Vendor
Liquid Web / StellarWP
Product
Advanced Post Manager
CVSS
HIGH 7.1
CISA KEV
Not listed in stored evidence
Original CVE published
2026-10-16
Original CVE updated
2026-10-16
Advisory published
2026-10-16
Advisory updated
2026-10-16

Who should care

Defenders responsible for WordPress installations with the Advanced Post Manager plugin should assess exposure and prioritize verification and potential updates.

Why it matters

The CVE-2026-111396 vulnerability in the WordPress Advanced Post Manager plugin requires attention from defenders responsible for WordPress installations with this plugin. The vulnerability's HIGH severity and potential for exploitation necessitate verification of access control configurations and timely updates.

  • Defenders need to verify access control configurations for the plugin to prevent potential exploitation.
  • There is a need to update the plugin to a version beyond 4.5.6 if possible.
  • Defenders should monitor for potential exploitation attempts due to the HIGH severity of the vulnerability.

Technical summary

The CVE-2026-111396 vulnerability is a Missing Authorization issue in the WordPress Advanced Post Manager plugin, affecting versions up to 4.5.6. This vulnerability allows attackers to exploit incorrectly configured access control security levels, with a CVSS score of 7.1 and HIGH severity.

Defensive priority

Defenders should prioritize verifying the version of the Advanced Post Manager plugin and ensuring it is updated to a version beyond 4.5.6 if possible. They should also review access control configurations for the plugin.

Recommended defensive actions

  • Verify the version of the Advanced Post Manager plugin and update if necessary
  • Review access control configurations for the plugin
  • Monitor for potential exploitation attempts

Evidence notes

The CVE record and source item provide details about the vulnerability, including its CVSS score and affected versions. However, there is limited information on exploitation or specific impacts.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-111396 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-111396

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-111396 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-111396

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.