The Beaver Builder Page Builder – Drag and Drop Website Builder plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the `js` Global Settings parameter in all versions up to, and including, 2.10.0.5 due to missing capability checks on save_global_settings() function and insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with Custom-level access and above who have been granted beaver builder access, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Privileges Required
Low
Basic privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
Low
Partial data leak
Integrity
Low
Partial data modification
Availability
None
No disruption
CVSS Vector v3.1
Weakness Type (CWE)
References 4
https://plugins.trac.wordpress.org/browser/beaver-builder-lite-version/tags/2.9…
security@wordfence.com
https://plugins.trac.wordpress.org/browser/beaver-builder-lite-version/tags/2.9…
security@wordfence.com
https://plugins.trac.wordpress.org/browser/beaver-builder-lite-version/tags/2.9…
security@wordfence.com
https://www.wordfence.com/threat-intel/vulnerabilities/id/7f7827bb-44d7-432d-85…
security@wordfence.com