CVE-2026-2357: Bold Page Builder <= 5.6.8 - Authenticated (Contributor+) Stored Cross-Site Scripting
The Bold Page Builder plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's 'btbbshortcode' shortcode in all versions up to, and including, 5.6.8 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
What is the severity of CVE-2026-2357?
CVE-2026-2357 has a medium severity rating of 6.4.
What type of vulnerability is CVE-2026-2357?
CVE-2026-2357 is an Authenticated Stored Cross-Site Scripting (XSS) vulnerability.
How do I fix CVE-2026-2357?
To fix CVE-2026-2357, update the Bold Page Builder plugin to a version higher than 5.6.8.
Who is affected by CVE-2026-2357?
Users of the Bold Page Builder plugin for WordPress up to and including version 5.6.8 are affected by CVE-2026-2357.
What causes CVE-2026-2357?
CVE-2026-2357 is caused by insufficient input sanitization and output escaping on user supplied attributes in the plugin.