WordPress plugin vulnerabilities

Meta pixel for WordPress vulnerabilities

Known security issues in the Meta pixel for WordPress WordPress plugin, by affected version, with severity, CVE and the version that fixes each one.

Plugin slug
official-facebook-pixel
Latest version
5.2.2
Active installs
400,000+
Known vulnerabilities
5
Data updated
2026-10-18 08:11 UTC

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Shown in WordPress under Plugins > Installed Plugins.

This information comes from public vulnerability databases and may be incomplete or out of date. A plugin with no known vulnerabilities is not proof that it is secure; keep plugins updated and remove the ones you do not use.

Fixed in version 5.2.2 (1)

Meta pixel for WordPress: Fixed in version 5.2.2
VulnerabilitySeverityCVSSAffected versionsPublished
WordPress Facebook for WordPress Plugin <= 5.2.1 is vulnerable to a medium priority Cross Site Scripting (XSS)
CVE-2026-66705 · Source
High7.1< 5.2.22021-03-25

Fixed in version 3.0.0 (2)

Meta pixel for WordPress: Fixed in version 3.0.0
VulnerabilitySeverityCVSSAffected versionsPublished
Facebook for WordPress &lt; 3.0.0 - PHP Object Injection with POP Chain
CVE-2021-24217 · Source
High8.1< 3.0.02021-03-25
WordPress Facebook for WordPress plugin <= 2.2.2 - PHP Object Injection vulnerability
No CVE assigned · Source
Not rated-< 3.0.02021-03-25

Affects version 3.0.3 and earlier (2)

The source does not state the fixed version; versions after this one are not listed as affected.

Meta pixel for WordPress: Affects version 3.0.3 and earlier
VulnerabilitySeverityCVSSAffected versionsPublished
Facebook for WordPress 3.0.0-3.0.3 - CSRF to Stored XSS and Settings Deletion
CVE-2021-24218 · Source
High8.8>= 3.0.0 and <= 3.0.32021-03-25
WordPress Facebook for WordPress plugin <= 3.0.3 - Cross-Site Request Forgery (CSRF) leading to Stored Cross-Site Scripting (XSS) vulnerability
No CVE assigned · Source
Not rated->= 3.0.0 and <= 3.0.32021-03-25

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Sources and attribution