CVE-2021-24218

Public Exploit

Facebook for WordPress 3.0.0-3.0.3 - CSRF to Stored XSS and Settings Deletion

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.

References

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

Frequently Asked Questions

What is the severity of CVE-2021-24218?: CVE-2021-24218 has been scored as a high severity vulnerability.
How to fix CVE-2021-24218?: To fix CVE-2021-24218, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-24218 being actively exploited in the wild?: It is possible that CVE-2021-24218 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-24218?: CVE-2021-24218 affects Unknown Facebook for WordPress.

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Description

Category

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

References

Frequently Asked Questions