Tainacan <= 1.0.1 - Missing Authorization to Unauthenticated Arbitrary Metadata Section Creation

Missing Authorization
CVE CVE-2025-14043
CVSS Medium (5.3)
Publicly Published December 20, 2025
Last Updated December 21, 2025
Researcher Deadbee
Description

The Tainacan plugin for WordPress is vulnerable to unauthorized metadata section creation due to missing authorization checks in all versions up to, and including, 1.0.1. This is due to the `create_item_permissions_check()` function unconditionally returning true, which bypasses authentication and authorization validation. This makes it possible for unauthenticated attackers to create arbitrary metadata sections for any collection via the public REST API granted they can access the WordPress site.

References

1 affected software package

Software Type Plugin
Software Slug tainacan (view on wordpress.org)
Patched? Yes
Affected Version
  • <= 1.0.1
Patched Version
  • 1.0.2
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