Vulnerability Description
The Smash Balloon Social Post Feed – Simple Social Feeds for WordPress plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 'id' Shortcode Attribute in all versions up to, and including, 4.9.0 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
CVSS Score
MEDIUM
Related Weaknesses (CWE)
References
- https://plugins.trac.wordpress.org/browser/custom-facebook-feed/tags/4.9.0/inc/C
- https://plugins.trac.wordpress.org/browser/custom-facebook-feed/tags/4.9.0/inc/C
- https://plugins.trac.wordpress.org/browser/custom-facebook-feed/tags/4.9.0/inc/C
- https://plugins.trac.wordpress.org/changeset/3640517/custom-facebook-feed/trunk/
- https://www.wordfence.com/threat-intel/vulnerabilities/id/ae039144-2c02-4a00-9ff
FAQ
What is CVE-2026-16775?
CVE-2026-16775 is a vulnerability with a CVSS score of 6.4 (MEDIUM). The Smash Balloon Social Post Feed – Simple Social Feeds for WordPress plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 'id' Shortcode Attribute in all versions up to, and includi...
How severe is CVE-2026-16775?
CVE-2026-16775 has been rated MEDIUM with a CVSS base score of 6.4/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-16775?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.