Auth bypass in Tainacan
CVE-2025-14043
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.
Vulnerability class: Broken Access Control
EPSS: 0.003 (23.0th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N.
Affected products
- Tainacan — versions 0
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2025-14043?
- CVE-2025-14043 is a medium-severity vulnerability in Tainacan, classified under Missing Authorization. CVSS score: 5.3/10. Published 2025-12-21.
- How severe is CVE-2025-14043?
- Medium severity. CVSS v3 base score is 5.3 out of 10.