CVE-2021-24217

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

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.

Affected

Facebook for WordPress

CVSS v3.1 NVD

8.1 HIGHCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS v2.0 NVD

6.8 MEDIUMAV:N/AC:M/Au:N/C:P/I:P/A:P

EPSS

3.52% chance of exploitation in the next 30 days, 89th percentile

Published

2021-04-12

Updated

2024-08-03

Proof-of-concept exploits (1)

• https://wpscan.com/vulnerability/509f2754-a1a1-4142-9126-ae023a88533a

Security advisories

• https://www.wordfence.com/blog/2021/03/two-vulnerabilities-patched-in-facebook-for-wordpr…

References

• CVE Record
• NVD entry