CVE-2025-12803
Bold Builder <= 5.5.1 - Authenticated (Contributor+) Stored Cross-Site Scripting via bt_bb_tabs Shortcode
CVSS Score
6.4
EPSS Score
0.0%
EPSS Percentile
0th
The Bold Page Builder plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin 'bt_bb_tabs' shortcode in all versions up to, and including, 5.5.1 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.
| CWE | CWE-80 |
| Vendor | boldthemes |
| Product | bold page builder |
| Published | Feb 7, 2026 |
| Last Updated | Apr 8, 2026 |
Stay Ahead of the Next One
Get instant alerts for boldthemes bold page builder
Be the first to know when new medium vulnerabilities affecting boldthemes bold page builder are published — delivered to Slack, Telegram or Discord.
Get Free Alerts →
Free · No credit card · 60 sec setup
CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Affected Versions
boldthemes / Bold Page Builder
0 ≤ 5.5.1
References
wordfence.com: https://www.wordfence.com/threat-intel/vulnerabilities/id/64f30329-ecf2-4e30-bc23-9d447e239e08?source=cve plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/bold-page-builder/tags/5.4.8/content_elements/bt_bb_tabs/bt_bb_tabs.php plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/bold-page-builder/tags/5.4.8/content_elements/bt_bb_tabs/bt_bb_tabs.php#L65
Credits
Muhammad Yudha - DJ