ZT Captcha Plugin up to 1.0.4 on WordPress Setting save_ztcpt_captcha_settings cross-site request forgery

Summaryinfo

A vulnerability marked as problematic has been reported in ZT Captcha Plugin up to 1.0.4 on WordPress. The impacted element is the function save_ztcpt_captcha_settings of the component Setting Handler. This manipulation causes cross-site request forgery. This vulnerability is registered as CVE-2026-1075. Remote exploitation of the attack is possible. No exploit is available.

Detailsinfo

A vulnerability was found in ZT Captcha Plugin up to 1.0.4 on WordPress. It has been declared as problematic. Affected by this vulnerability is the function save_ztcpt_captcha_settings of the component Setting Handler. The manipulation with an unknown input leads to a cross-site request forgery vulnerability. The CWE definition for the vulnerability is CWE-352. The web application does not, or can not, sufficiently verify whether a well-formed, valid, consistent request was intentionally provided by the user who submitted the request. As an impact it is known to affect integrity. The summary by CVE is:

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.

The advisory is shared at wordfence.com. This vulnerability is known as CVE-2026-1075. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. It demands that the victim is doing some kind of user interaction. Technical details are known, but no exploit is available.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-4567). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

• WordPress Plugin

Name

• ZT Captcha Plugin

Version

• 1.0.0
• 1.0.1
• 1.0.2
• 1.0.3
• 1.0.4

CPE 2.3info

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CPE 2.2info

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Entryinfo

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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