CVE-2021-24918: Smashballoon Smash Balloon Social Post Feed

Medium severity, CVSS 5.4. EPSS: 0.7% chance of exploitation in the next 30 days.

The Smash Balloon Social Post Feed WordPress plugin before 4.0.1 did not have any privilege or nonce validation before saving the plugin's setting. As a result, any logged-in user on a vulnerable site could update the settings and store rogue JavaScript on each of its posts and pages.

Affected products

• Smashballoon Smash Balloon Social Post Feed: before 4.0.1 (fixed in 4.0.1)

Published 2021-11-29. Last modified 2026-06-17.