Known vulnerabilities in Custom Post Type UI

Admin UI for creating custom content types like post types and taxonomies

4Reported vulnerabilities

8.8Highest CVSS score

1.19.3Latest version

1,000,000+Active installs

What to do now

Update Custom Post Type UI to 1.18.2 or later. 4 of these have a fixed version available. Updating resolves them.

Plugin last updated: July 14, 2026 / Tested up to WordPress: 7.0.4 / View on wordpress.org

Reported vulnerabilities

Ordered by how urgently they need attention — whether a vulnerability is actually being exploited, and how likely exploitation is, rather than CVSS severity alone.

CVE	Severity	Exploit probability next 30 days	Affected versions	Fixed in	Published
CVE-2023-1623	Medium 6.5	0.4%	Before 1.13.5	`1.13.5`	April 24, 2023
WF-08115f30-f38b-4c13-803e-5de873f83a17	High 8.8	—	Before 1.7.4	`1.7.4`	March 18, 2020
CVE-2025-12826	Medium 4.8	0.3%	1.18.0 and earlier	`1.18.1`	December 3, 2025
CVE-2025-14056	Medium 4.4	0.3%	0 to 1.18.1 (inclusive)	`1.18.2`	December 13, 2025

Sources: vulnerability records from NVD, exploitation from CISA KEV, exploit probability from EPSS. Affected versions come from CPE ranges or from the reporting CNA.