CVE-2020-36709: King-Theme Page Builder Kingcomposer

Medium severity, CVSS 4.8. EPSS: 0.6% chance of exploitation in the next 30 days.

The Page Builder: KingComposer plugin for WordPress is vulnerable to Stored Cross-Site Scripting via via shortcode in versions before 2.9.4 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Affected products

• King-Theme Page Builder Kingcomposer: before 2.9.4 (fixed in 2.9.4)

Published 2023-06-07. Last modified 2026-06-17.