CVE-2026-8423
MediumCVSS 4.3Exploitation Probability (EPSS)
Low risk8th percentile - higher than 8% of all known CVEs
Summary
The JaviBola Custom Theme Test plugin for WordPress is vulnerable to Cross-Site Request Forgery (CSRF) in all versions up to and including 2.0.5. Missing nonce validation on the options page allows unauthenticated attackers to change the site's active theme by modifying the jbct_theme option via a forged request, provided they trick a site administrator into clicking a link.
Risk Assessment
An attacker can change the site's theme to a malicious one, potentially leading to display of harmful content or credential theft.
Recommendation
Update the plugin to the latest available version that includes the CSRF fix. If not available, consider removing it.
Original NVD description (English source)
The JaviBola Custom Theme Test plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 2.0.5. This is due to missing or incorrect nonce validation on the options page. This makes it possible for unauthenticated attackers to change the site's active theme by modifying the jbct_theme option via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.