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Medium severity · published Oct 2, 2026
CVE-2026-39444
WordPress PublishPress Series plugin <= 3.1.3 - Insecure Direct Object References (IDOR) vulnerability
5.4
CVSS
0.2%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
Low
Availability
Low
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 8% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
PS
PublishPress Series · PublishPress
through 3.1.3 · source: vendor
Affected product
PS
PublishPress Series
PublishPress
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-39444
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-39444
vdb-entry
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
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