Medium severity6.4NVD Advisory· Published Aug 16, 2026· Updated Aug 20, 2026
CVE-2026-16775
CVE-2026-16775
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
1- Range: <=4.9.0
Patches
Vulnerability mechanics
References
5- plugins.trac.wordpress.org/browser/custom-facebook-feed/tags/4.9.0/inc/CFF_FB_Settings.phpnvd
- plugins.trac.wordpress.org/browser/custom-facebook-feed/tags/4.9.0/inc/CFF_Shortcode.phpnvd
- plugins.trac.wordpress.org/browser/custom-facebook-feed/tags/4.9.0/inc/CFF_Shortcode.phpnvd
- plugins.trac.wordpress.org/changeset/3640517/custom-facebook-feed/trunk/inc/CFF_Shortcode.phpnvd
- www.wordfence.com/threat-intel/vulnerabilities/id/ae039144-2c02-4a00-9fff-f4e90a6a8236nvd
News mentions
1- Wordfence Intelligence Weekly WordPress Vulnerability Report (August 10, 2026 to August 16, 2026)Wordfence Blog · Aug 21, 2026