CVE-2026-2951: Gutentor – Gutenberg Blocks – Page Builder For Gutenberg Editor

Medium severity, CVSS 5.4. EPSS: 0.2% chance of exploitation in the next 30 days.

The Gutentor – Gutenberg Blocks – Page Builder for Gutenberg Editor plugin for WordPress is vulnerable to Stored Cross-Site Scripting in versions up to, and including, 3.5.5 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Affected products

• Gutentor Gutentor – Gutenberg Blocks – Page Builder For Gutenberg Editor: up to and including 3.5.5

Published 2026-04-23. Last modified 2026-06-17.