CVE-2021-24217

HIGH 8.1CVE-2021-24217 · Published 12/04/2021 · updated 17/06/2026

In short

CVE-2021-24217 is a HIGH (CVSS 8.1) vulnerability affecting facebook (facebook).
Chance of exploitation in the next 30 days (EPSS): 3.5%, higher than 89.2% of all vulnerabilities.
Fix: update to 3.0.0 or later.

Package	Affected versions	Patched versions
facebook facebook	`< 3.0.0`	`3.0.0`

Description

The run_action function of the Facebook for WordPress plugin before 3.0.0 deserializes user supplied data making it possible for PHP objects to be supplied creating an Object Injection vulnerability. There was also a useable magic method in the plugin that could be used to achieve remote code execution.

References

wpscan.com/vulnerability/509f2754-a1a1-4142-9126-ae023a88533a · Exploit
wordfence.com/blog/2021/03/two-vulnerabilities-patched-in-facebook-for-wordpress-plugin · Exploit

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