Medium 4.8Published Dec 4, 2025

CVE-2025-12826Custom Post Type UI <= 1.18.0 - Missing Authorization to Unauthenticated (Previously Administrator+) Custom Post Type Modification

Updated under an hour ago (Oct 30, 2026, 5:10 AM ET)

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It affects webdevstudios Custom Post Type UI. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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The Custom Post Type UI plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 1.18.0. This is due to the plugin not verifying that a user has the required capability to perform actions in the "cptui_process_post_type" function. This makes it possible for authenticated attackers, with subscriber level access and above, to add, edit, or delete custom post types in limited situations.

CVSS: 4.8 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:L
Weakness (CWE): CWE-862
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Wordfence
NVD analysis: Deferred
Record last updated: Apr 8, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

webdevstudios Custom Post Type UI webdevstudios:custom_post_type_ui (from the name)	through 1.18.0	CNA record

References

References

https://www.wordfence.com/threat-intel/vulnerabilities/id/90d203b1-9426-4eff-b566-02c8a1c6adfa?source=cve
https://github.com/WebDevStudios/custom-post-type-ui/commit/215779a5ac0c624f0dcf875e87305b4898d5bcf9

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.