CSRF in Mtcaptcha WordPress Plugin
CVE-2025-13520
The MTCaptcha WordPress Plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 2.7.2. This is due to missing or incorrect nonce validation on the settings update functionality. This makes it possible for unauthenticated attackers to update the plugin settings, including sensitive values like the private key, via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.
Vulnerability class: CSRF (Cross-Site Request Forgery)
EPSS: 0.001 (3.8th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N.
Affected products
- Mtcaptcha Wordpress Plugin — versions 0
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2025-13520?
- CVE-2025-13520 is a medium-severity vulnerability in Mtcaptcha WordPress Plugin, classified under Cross-Site Request Forgery (CSRF). CVSS score: 4.3/10. Published 2026-01-07.
- How severe is CVE-2025-13520?
- Medium severity. CVSS v3 base score is 4.3 out of 10.