What is CVE-2021-24218?

CVE-2021-24218 is a high-severity vulnerability in Facebook, classified under Cross-Site Request Forgery (CSRF). CVSS score: 8.8/10. Published 2021-04-12.

How severe is CVE-2021-24218?

High severity. CVSS v3 base score is 8.8 out of 10.

Is CVE-2021-24218 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

CSRF in Facebook

CVE-2021-24218

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.

Vulnerability class: CSRF (Cross-Site Request Forgery)

EPSS: 0.007 (49.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

Affected products

Facebook
Unknown Facebook For Wordpress — versions 3.0.0, 3.0.4

Weakness classification (CWE)

CWE-352 — Cross-Site Request Forgery (CSRF)

Public proof-of-concept exploits

20142995/nuclei-templates

References

contact@wpscan.com (Exploit, Third Party Advisory, x_refsource_MISC)
contact@wpscan.com (x_refsource_CONFIRM, Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2021-24218?: CVE-2021-24218 is a high-severity vulnerability in Facebook, classified under Cross-Site Request Forgery (CSRF). CVSS score: 8.8/10. Published 2021-04-12.
How severe is CVE-2021-24218?: High severity. CVSS v3 base score is 8.8 out of 10.
Is CVE-2021-24218 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.