CVE-2026-39444

MEDIUM 5.4

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

CVSS Score

5.4

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-639
Vendor	publishpress
Product	publishpress series
Published	Oct 2, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

Low

Availability

Low

Affected Versions

PublishPress / PublishPress Series

0 ≤ 3.1.3

References

NVD ↗ CVE.org ↗ EPSS Data ↗

patchstack.com: https://patchstack.com/database/wordpress/plugin/organize-series/vulnerability/wordpress-publishpress-series-plugin-3-1-3-insecure-direct-object-references-idor-vulnerability?_s_id=cve

Credits

dcs | Patchstack Bug Bounty Program