CVE-2021-24217

Public Exploit
Facebook for WordPress < 3.0.0 - PHP Object Injection with POP Chain

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.

Category

8.1
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 6.50% Top 10%
Third-Party Advisory wpscan.com Third-Party Advisory wordfence.com
Affected: Unknown Facebook for WordPress
Published at:
Updated at:

References

Link Tags
https://wpscan.com/vulnerability/509f2754-a1a1-4142-9126-ae023a88533a third party advisory exploit
https://www.wordfence.com/blog/2021/03/two-vulnerabilities-patched-in-facebook-for-wordpress-plugin/ third party advisory exploit

Frequently Asked Questions

What is the severity of CVE-2021-24217?
CVE-2021-24217 has been scored as a high severity vulnerability.
How to fix CVE-2021-24217?
To fix CVE-2021-24217, 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-2021-24217 being actively exploited in the wild?
It is possible that CVE-2021-24217 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~7% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-24217?
CVE-2021-24217 affects Unknown Facebook for WordPress.
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