CVE-2023-4919: Iframe Project Iframe

Medium severity, CVSS 5.4. EPSS: 0.6% chance of exploitation in the next 30 days.

The iframe plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the `iframe` shortcode in versions up to, and including, 4.6 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor-level permission and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This was partially patched in version 4.6 and fully patched in version 4.7.

Affected products

• Iframe Project Iframe: before 4.7 (fixed in 4.7)

Published 2023-10-20. Last modified 2026-06-17.