Description
The Post and Page Builder by BoldGrid – Visual Drag and Drop Editor plugin for WordPress is vulnerable to Stored Cross-Site Scripting via file uploads in all versions up to, and including, 1.26.6 due to insufficient input sanitization and output escaping affecting the boldgrid_canvas_image AJAX endpoint. 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 the SVG file.
CVSS breakdown
CVSS 3.1
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None
Affected products
References
- MISChttps://www.wordfence.com/threat-intel/vulnerabilities/id/4d5dcec8-fa36-43ab-9a35-0b391fe1d88e?source=cve
- MISChttps://plugins.trac.wordpress.org/browser/post-and-page-builder/tags/1.26.6/includes/class-boldgrid-editor-ajax.php#L372
- MISChttps://wordpress.org/plugins/post-and-page-builder/#developers
- PATCHhttps://github.com/BoldGrid/post-and-page-builder/pull/613/commits/64c33a6d0c9dbb0151d3af5fee9e026df6c5a2f6
- MISChttps://github.com/BoldGrid/post-and-page-builder/issues/612