CVE-2026-111396: StellarWP Advanced Post Manager missing authorization

CVE-2026-111396 · Severity: high · CVSS 7.1 · Published 2026-10-16

Advanced Post Manager is a WordPress plugin that manages blog posts and content. A broken access control flaw allows users with contributor-level permissions to view or modify posts they should not have access to, potentially exposing sensitive content or allowing unauthorized changes to published material.

Vendors: StellarWP.

Quick answers

Is CVE-2026-111396 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-111396 being exploited in the wild.
How severe is CVE-2026-111396?
High severity, with a CVSS score of 7.1, published 16 October 2026.
Which products and versions are affected?
StellarWP Advanced Post Manager through 4.5.6.
Is there a fix for CVE-2026-111396?
Yes: fixed in 4.5.7. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-111396 attacked?
It is attacked over the network, in a web application.
Am I affected by CVE-2026-111396?
Check whether you run StellarWP Advanced Post Manager at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

  • Fixed in: 4.5.7

Technical details

The plugin fails to properly validate user permissions before allowing access to posts, allowing contributors to bypass intended access restrictions. This is a broken access control vulnerability requiring at least contributor-level privileges. A fix is available in version 4.5.7.

Affected products

  • StellarWP Advanced Post Manager through 4.5.6

Timeline

  • 2026-10-16: disclosed
  • 2026-10-16: advisory

References

This page as Markdown. Free to reuse under CC BY 4.0 with a link back.