CVE-2026-16775
MediumCVSS 6.4Exploitation Probability (EPSS)
Low risk9th percentile - higher than 9% of all known CVEs
Summary
The Smash Balloon Social Post Feed – Simple Social Feeds plugin for WordPress up to version 4.9.0 is vulnerable to Stored Cross-Site Scripting via the 'id' shortcode attribute. Authenticated attackers with contributor-level access and above can inject arbitrary scripts that execute when a user accesses the injected page.
Risk Assessment
Risk of user session hijacking, data theft, or malware distribution.
Recommendation
Update the Smash Balloon Social Post Feed plugin to the latest version. Restrict contributor permissions and regularly scan pages.
Original NVD description (English source)
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.