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**Name of the Vulnerable Software and Affected Versions** Gutenverse versions prior to 3.8.1 **Description** The Gutenverse – WordPress Blocks, Page Builder & Site Editor plugin for WordPress contains a Stored Cross-Site Scripting issue in the admin settings. This occurs due to insufficient input sanitization and output escaping, allowing authenticated attackers with editor-level permissions or higher to inject arbitrary web scripts into pages. These scripts execute when a user accesses the affected page. This issue specifically impacts multi-site installations and environments where `unfiltered html` has been disabled. The flaw is triggered via the `fonts[].font.font.value` parameter. **Recommendations** Update the plugin to a version newer than 3.8.0.