CVE-2021-24217
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.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (3.52%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.1
- 8.1 HIGHCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 3.52% probability · 89th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-502
- Affected
- facebook/facebook
- Source
- contact@wpscan.com
References
- https://wpscan.com/vulnerability/509f2754-a1a1-4142-9126-ae023a88533aExploit, Third Party Advisory
- https://www.wordfence.com/blog/2021/03/two-vulnerabilities-patched-in-facebook-for-wordpress-plugin/Exploit, Third Party Advisory
- https://wpscan.com/vulnerability/509f2754-a1a1-4142-9126-ae023a88533aExploit, Third Party Advisory
- https://www.wordfence.com/blog/2021/03/two-vulnerabilities-patched-in-facebook-for-wordpress-plugin/Exploit, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.