CVE-2023-4961: Poptin Popups

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

The Poptin plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 'poptin-form' shortcode in versions up to, and including, 1.3 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers with contributor-level and above permissions to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Affected products

• Poptin Popups: before 1.3.1 (fixed in 1.3.1)

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