Custom Post Type UI <= 1.18.1 - Authenticated (Administrator+) Stored Cross-Site Scripting via 'label' Import Parameter

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CVE CVE-2025-14056
CVSS Medium (4.4)
Publicly Published December 12, 2025
Last Updated December 13, 2025
Researcher type5afe
Description

The Custom Post Type UI plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'label' parameter during custom post type import in all versions up to, and including, 1.18.1 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with Administrator-level access, to inject arbitrary web scripts in pages that will execute whenever a user accesses the Tools → Get Code page.

References

1 affected software package

Software Type Plugin
Software Slug custom-post-type-ui (view on wordpress.org)
Patched? Yes
Affected Version
  • <= 1.18.1
Patched Version
  • 1.18.2
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