Meta pixel for WordPress <= 2.2.2 - PHP Object Injection

Deserialization of Untrusted Data
CVE CVE-2021-24217
CVSS High (8.1)
Publicly Published March 25, 2021
Last Updated January 22, 2024
Researcher Chloe Chamberland
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

1 affected software package

Software Type Plugin
Software Slug official-facebook-pixel (view on wordpress.org)
Patched? Yes
Affected Version
  • <= 2.2.2
Patched Version
  • 3.0.0
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