CVE-2026-16775: Smash Balloon Social Post Feed <= 4.9.0 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'id' Shortcode Attribute
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.
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2026-16775?
CVE-2026-16775 has a medium severity rating of 6.4.
How do I fix CVE-2026-16775?
To fix CVE-2026-16775, update the Smash Balloon Social Post Feed plugin to version 4.9.1 or later.
What type of vulnerability is CVE-2026-16775?
CVE-2026-16775 is a Stored Cross-Site Scripting (XSS) vulnerability.
Who is affected by CVE-2026-16775?
All users of the Smash Balloon Social Post Feed plugin version 4.9.0 or earlier are affected by CVE-2026-16775.
What causes the vulnerability in CVE-2026-16775?
The vulnerability is caused by insufficient input sanitization and output escaping in the 'id' shortcode attribute.