Bold Builder <= 5.3.6 - Authenticated (Contributor+) Stored Cross-Site Scripting via additional_settings Parameter
Vulnerability Description
The Bold Page Builder plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the ‘additional_settings’ parameter in all versions up to, and including, 5.3.6 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.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
Am I Vulnerable?
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Credits & Attribution
The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:
- Muhammad Yudha - DJ
References
- https://www.wordfence.com/threat-intel/vulnerabilities/id/9ae076e4-ad15-4069-be10-f0f4aced4132?source=cve
- https://plugins.trac.wordpress.org/browser/bold-page-builder/tags/5.3.6/content_elements/bt_bb_content_slider/bt_bb_content_slider.php#L7
- https://plugins.trac.wordpress.org/browser/bold-page-builder/tags/5.3.6/content_elements/bt_bb_content_slider/bt_bb_content_slider.php#L156
- https://plugins.trac.wordpress.org/browser/bold-page-builder/tags/5.3.6/content_elements/bt_bb_content_slider/bt_bb_content_slider.php#L176
- https://wordpress.org/plugins/bold-page-builder/#developers
- https://plugins.trac.wordpress.org/changeset/3302452
- https://plugins.trac.wordpress.org/browser/bold-page-builder/tags/5.3.7/content_elements/bt_bb_content_slider/bt_bb_content_slider.php#L156
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