CVE-2025-13520 MTCaptcha WordPress Plugin <= 2.7.2 - Cross-Site Request Forgery to Settings Update
Unauthenticated attackers can trick administrators into updating plugin settings, including private keys, via forged requests.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2025-13520?
CVE-2025-13520 is a medium-severity vulnerability in MTCaptcha WordPress Plugin, published on 7 Jan 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
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.
Weakness: CWE-352
Which versions are affected by CVE-2025-13520?
How do I fix CVE-2025-13520?
No fix has been published for CVE-2025-13520 yet. Limit exposure of the affected software until one is available.
Is CVE-2025-13520 being exploited?
There is no known exploitation of CVE-2025-13520 in the wild and no public exploit code.
Sources
Also known as GHSA-c494-7f9x-6wf4.