Vulnerability record · CVE-2021-24218 · published 12 April 2021

CVE-2021-24218: Facebook cross-site request forgery vulnerability

Facebook · Facebook

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.

8.8 CVSS 3.1 High EPSS 0.70% · top 48.8% CWE-352 · Cross-site request forgery

8.8CVSS 3.1 base score, v2 6.8

0.70%EPSS exploitation probability, 30 days

NoNot in CISA KEV

1Affected product versions listed by NVD

4References, 4 tagged exploit

17 Jun 2026Last modified by NVD

Description

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

Facebook Facebook

References

Link	Tags
https://wpscan.com/vulnerability/169d21fc-d191-46ff-82e8-9ac887aed8a4	ExploitThird Party Advisory
https://www.wordfence.com/blog/2021/03/two-vulnerabilities-patched-in-facebook-for-wordpress-plugin/	ExploitThird Party Advisory
https://wpscan.com/vulnerability/169d21fc-d191-46ff-82e8-9ac887aed8a4	ExploitThird Party Advisory
https://www.wordfence.com/blog/2021/03/two-vulnerabilities-patched-in-facebook-for-wordpress-plugin/	ExploitThird Party Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2021-24218), CISA KEV, FIRST EPSS (scores of 2026-09-28). This page is refreshed as NVD updates the record.