JaviBola Custom Theme Test WordPress Plugin Cross-Site Request Forgery Vulnerability

A Cross-Site Request Forgery (CSRF) vulnerability has been identified in the JaviBola Custom Theme Test plugin for WordPress, affecting all versions up to and including 2.0.5. The vulnerability arises from inadequate nonce validation on the options page, allowing unauthenticated attackers to change the active theme by modifying the 'jbct_theme' option through a forged request, provided they can deceive a site administrator into clicking a link.

Impact

Exploitation of this vulnerability allows for Cross-Site Request Forgery, where an attacker can trick an administrator into changing the active theme, potentially leading to further exploitation if the new theme contains malicious elements.

Reproduction

To reproduce this vulnerability, an attacker must send a forged request to the WordPress site, targeting the 'jbct_theme' option. This can be done by tricking an administrator into clicking a link that carries the malicious request, such as through a phishing email or a compromised website.