CVE-2026-66705: WordPress Facebook for WordPress plugin <= 5.2.1 - Cross Site Scripting (XSS) vulnerability
Published Aug 6, 2026
·Updated
Unauthenticated Cross Site Scripting (XSS) in Facebook for WordPress <= 5.2.1 versions.
Affected Software
1 affected component
WordPress Facebook<=5.2.1
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
WordPress Facebook for WordPress Pluginto a version that resolves this vulnerability.Fixed in 5.2.2
Event History
Aug 6, 2026
CVE Published
via MITRE·02:28 PM
Data Sourced
via MITRE·02:28 PM
RemedyDescriptionSeverityWeakness
Frequently Asked Questions
1
What is the severity of CVE-2026-66705?
CVE-2026-66705 has a high severity rating of 7.1.
2
What type of vulnerability is CVE-2026-66705?
CVE-2026-66705 is a Cross Site Scripting (XSS) vulnerability.
3
How do I fix CVE-2026-66705?
To fix CVE-2026-66705, update the Facebook for WordPress plugin to version 5.2.2 or later.
4
What versions are affected by CVE-2026-66705?
CVE-2026-66705 affects Facebook for WordPress versions up to and including 5.2.1.
5
Is authentication required to exploit CVE-2026-66705?
No, CVE-2026-66705 can be exploited without authentication.