CVE-2026-39444: WordPress PublishPress Series plugin <= 3.1.3 - Insecure Direct Object References (IDOR) vulnerability

Published Oct 2, 2026
·
Updated

Authorization Bypass Through User-Controlled Key vulnerability in PublishPress PublishPress Series organize-series allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects PublishPress Series: from n/a through 3.1.3.

Affected Software

1 affected component
PublishPress PublishPress Series<=3.1.3

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade WordPress PublishPress Series to a version that resolves this vulnerability.

    Fixed in 3.1.4

Event History

Oct 2, 2026
CVE Published
via MITRE·02:46 PM
Data Sourced
via MITRE·02:46 PM
RemedyDescriptionSeverityWeakness
Data Sourced
via NVD·03:17 PM
DescriptionSeverityWeakness

Frequently Asked Questions

1

Who can exploit this issue?

The CVSS vector indicates that exploitation is network-accessible, requires low privileges, and does not require user interaction. An attacker would need an authenticated account with low-level permissions.

2

What versions are affected?

PublishPress Series is affected through version 3.1.3. The available data does not identify a fixed version.

3

What is the likely impact?

The issue is rated medium severity with a CVSS score of 5.4. It can affect integrity and availability at a low level; no confidentiality impact is indicated.

Contact

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