CVE-2023-4283: Wpdeveloper Embedpress

Medium severity, CVSS 5.4. EPSS: 0.5% chance of exploitation in the next 30 days.

The EmbedPress plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'embedpress_calendar' shortcode in versions up to, and including, 3.8.2 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

• Wpdeveloper Embedpress: up to and including 3.8.2

Published 2023-08-10. Last modified 2026-06-17.