CVE-2026-8424: Remove Yellow BGBOX <= 1.0 - Cross-Site Request Forgery

Severity: medium (CVSS 4.3 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-05-20 · updated 2026-07-23
Weakness: CWE-352

Description

The Remove Yellow BGBOX plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 1.0. This is due to missing or incorrect nonce validation on the 'rybb_api_settings' page. This makes it possible for unauthenticated attackers to reset the plugin's stored settings by overwriting its configuration via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.

Affected products

jay_patel Remove Yellow BGBOX: through 1.0

References

https://plugins.trac.wordpress.org/browser/remove-yellow-bgbox/tags/1.0/admin/rybb_api_settings.php#L5
https://plugins.trac.wordpress.org/browser/remove-yellow-bgbox/tags/1.0/includes/functions.php#L16
https://plugins.trac.wordpress.org/browser/remove-yellow-bgbox/trunk/admin/rybb_api_settings.php#L5
https://plugins.trac.wordpress.org/browser/remove-yellow-bgbox/trunk/includes/functions.php#L16
https://www.wordfence.com/threat-intel/vulnerabilities/id/c5b30d27-a3f8-4535-a47f-675c939ec648?source=cve

Get alerted when CVE-2026-8424 or the next vulnerability affects your stack