TI-2021-06509 Aliases CVE-2021-24217 GHSA-w6px-4fhm-xxgc

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

MEDIUM 41CWE-502Published 2021-04-12 · Updated 2024-08-03

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: High
Impact type: Code execution
Confidentiality · integrity · availability: High · High · High
Fix status: Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-502.

Summary

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.

Why it matters now

EPSS 0.0352 89th percentileScored 2026-11-07

Public exploit Yes 2 exploit referencesTagged by NVD

Fix Fixed Facebook for WordPress (Unknown): 3.0.0

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Unknown	Facebook for WordPress	3.0.0 to before 3.0.0	3.0.0	Patch available	CNA

Facebook for WordPress VendorUnknown Affected 3.0.0 to before 3.0.0 Fixed in 3.0.0 Patch available CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:facebook:facebook::::::wordpress::*	before 3.0.0	Vulnerable	Meta

cpe:2.3:a:facebook:facebook:*:*:*:*:*:wordpress:*:* Versions before 3.0.0 Vulnerable ·Meta

Remediation

Fix · CNA Facebook for WordPress (Unknown) Fixed in 3.0.0

Timeline

2026-10-02 Threatist record created from CVE-2021-24217
2026-10-03 Alias added: GHSA-w6px-4fhm-xxgc

References

Exploit 2

TI-2008-00628 Multiple stack-based buffer overflows in Aurigma Image Uploader ActiveX control… CVSS 2.0HIGH 9.3
TI-2021-06510 Facebook for WordPress 3.0.0-3.0.3 - CSRF to Stored XSS and Settings Deletion CVSS 3.1HIGH 8.8
TI-2014-05258 Cross-site scripting (XSS) vulnerability in the Facebook app 14.0 and the Facebook… CVSS 2.0MEDIUM 4.3

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences