CVE-2026-6171: Bold Page Builder <= 5.7.2 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'target' Shortcode Attribute
The Bold Page Builder plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'target' parameter of the plugin's btbbicon shortcode in all versions up to, and including, 5.7.2 due to insufficient input sanitization and output escaping on user-supplied attributes. 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.
Affected Software
Event History
Frequently Asked Questions
Which users can exploit this issue?
An attacker must be authenticated to WordPress with Contributor-level access or higher. They can inject malicious script through the target attribute of the bt_bb_icon shortcode.
When does the injected script execute?
The script is stored in a page and executes when a user visits the injected page. Exploitation does not require further interaction from the attacker after the malicious page content is saved.
Which installations are affected?
Bold Page Builder versions up to and including 5.7.2 are affected. The available information does not state whether any particular WordPress configuration or shortcode usage is required beyond use of the vulnerable bt_bb_icon shortcode.