CVE-2026-1075: Teamzt Zt Captcha

Medium severity, CVSS 4.3. EPSS: 0.2% chance of exploitation in the next 30 days.

The ZT Captcha plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 1.0.4. This is due to improper nonce validation on the save_ztcpt_captcha_settings action where the nonce check can be bypassed by sending an empty token value. This makes it possible for unauthenticated attackers to modify the plugin's settings via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.

Affected products

• Teamzt Zt Captcha: up to and including 1.0.4

Published 2026-01-24. Last modified 2026-06-17.