CVE-2026-6378
Maxi Blocks <= 2.1.9 - Authenticated (Author+) Stored Cross-Site Scripting via Style Card REST API
Summary
Maxi Blocks <= 2.1.9 - Authenticated (Author+) Stored Cross-Site Scripting via Style Card REST API
Original description
The description as published by the source.
The Maxi Blocks plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the /wp-json/maxi-blocks/v1.0/style-card REST API endpoint in all versions up to, and including, 2.1.9 due to insufficient input sanitization and output escaping of the sc_styles parameter. This makes it possible for authenticated attackers, with Author-level access and above, to inject arbitrary web scripts that execute on every page where the plugin's style card styles are loaded, including across the entire WordPress admin panel.
References
- advisory github.com
- advisory nvd.nist.gov
- web github.com
- web plugins.trac.wordpress.org
- web plugins.trac.wordpress.org
- web plugins.trac.wordpress.org
- web plugins.trac.wordpress.org
- web plugins.trac.wordpress.org
- web plugins.trac.wordpress.org
- web plugins.trac.wordpress.org
- web plugins.trac.wordpress.org
- web wordfence.com