CVE Catalog

CVE-2024-9375

MediumCVSS 6.1
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.32%

23th percentile - higher than 23% of all known CVEs

Summary

The WordPress Captcha Plugin by Captcha Bank plugin for WordPress is vulnerable to Reflected Cross-Site Scripting due to the use of add_query_arg without appropriate escaping on the URL in all versions up to, and including, 4.0.36. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link.

Risk Assessment

An attacker can execute arbitrary JavaScript in the victim's browser, leading to session theft, redirects, or other actions in the context of an authenticated user. This poses a threat to the confidentiality and integrity of the WordPress site.

Recommendation

Upgrade the Captcha Plugin by Captcha Bank plugin to a version later than 4.0.36 if available, or consider removing it. Implement proper output escaping in URLs.

Related vulnerabilities

Original NVD description (English source)

The WordPress Captcha Plugin by Captcha Bank plugin for WordPress is vulnerable to Reflected Cross-Site Scripting due to the use of add_query_arg without appropriate escaping on the URL in all versions up to, and including, 4.0.36. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS