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CVE-2021-24218

HIGH 8.8 CVSS 3.1
Published
April 12, 2021
Last modified
June 17, 2026
NVD status
Modified
Reported by
contact@wpscan.com
Weakness
CWE-352
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Description

The wp_ajax_save_fbe_settings and wp_ajax_delete_fbe_settings AJAX actions of the Facebook for WordPress plugin before 3.0.4 were vulnerable to CSRF due to a lack of nonce protection. The settings in the saveFbeSettings function had no sanitization allowing for script tags to be saved.

Affected WordPress components

  • facebook Plugin · facebook
    Confirmed match Homeless
    From 3.0.0 (including) to 3.0.4 (excluding)
    View on WordPress.org
  • Meta pixel for WordPress Plugin · official-facebook-pixel
    Confirmed match Active
    From 3.0.0 (including) to 3.0.0* (excluding); From 3.0.4 (including) to 3.0.4 (excluding)
    View on WordPress.org

A confirmed match is backed by the plugin or theme slug. A possible match is based on the product name only and should be verified.

Affected products and versions

  • Unknown Facebook for WordPress — From 3.0.0 (including) to 3.0.0* (excluding)
  • Unknown Facebook for WordPress — From 3.0.4 (including) to 3.0.4 (excluding)
  • facebook facebook — From 3.0.0 (including) to 3.0.4 (excluding)

References

  • wpscan.com https://wpscan.com/vulnerability/169d21fc-d191-46ff-82e8-9ac887aed8a4 Exploit, Third Party Advisory
  • www.wordfence.com https://www.wordfence.com/blog/2021/03/two-vulnerabilities-patched-in-facebook-for-wordpress-plugin/ Exploit, Third Party Advisory
  • nvd.nist.gov Official NVD record