Description
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.
CVSS 6.4EPSS 0.234%Risk 0.65
View source- Published
- 2026-05-02 04:16:11
- Affected versions
- <=2.1.9
- Type
- Installed app
- Vector
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N