What is CVE-2026-39444?

CVE-2026-39444 is a medium-severity vulnerability in Publishpress Series, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 5.4/10. Published 2026-10-02.

How severe is CVE-2026-39444?

Medium severity. CVSS v3 base score is 5.4 out of 10.

Auth bypass in Publishpress Series

CVE-2026-39444

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.

Vulnerability class: IDOR (Insecure Direct Object Reference)

Published 2026-10-02 · last modified 2026-10-02.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Publishpress Series

Weakness classification (CWE)

CWE-639 — Authorization Bypass Through User-Controlled Key

References

patchstack.com/database/wordpress/plugin/organize-series/vulnerability/wordpres… (vdb-entry)

Frequently asked questions

What is CVE-2026-39444?: CVE-2026-39444 is a medium-severity vulnerability in Publishpress Series, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 5.4/10. Published 2026-10-02.
How severe is CVE-2026-39444?: Medium severity. CVSS v3 base score is 5.4 out of 10.