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Gutenberg Blocks by Kadence Blocks <= 3.4.2 is vulnerable to Authenticated (contributor+) Stored Cross-Site Scripting via Button Link vulnerability

Contributor
Published
2025-01-09

The Gutenberg Blocks with AI by Kadence WP – Page Builder Features plugin for WordPress is vulnerable to Stored Cross-Site Scripting via button block link in all versions up to, and including, 3.4.2 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.

CVSS

Score:6.5

Severity:Medium

Version: 3.4.2

There is a patch available in v3.4.3 and we strongly recommend you update to this version as soon as possible.