What’s Vulnerable › Vulnerabilities

CVE-2025-12803: Bold Builder <= 5.5.1 - Authenticated (Contributor+) Stored Cross-Site Scripting via bt_bb_tabs Shortcode

• Severity: medium (CVSS 6.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-02-07 · updated 2026-06-17
• Weakness: CWE-80

Description

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.

Affected products

• boldthemes Bold Page Builder: through 5.5.1

References

• https://plugins.trac.wordpress.org/browser/bold-page-builder/tags/5.4.8/content_elements/bt_bb_tabs/bt_bb_tabs.php
• https://plugins.trac.wordpress.org/browser/bold-page-builder/tags/5.4.8/content_elements/bt_bb_tabs/bt_bb_tabs.php#L65
• https://www.wordfence.com/threat-intel/vulnerabilities/id/64f30329-ecf2-4e30-bc23-9d447e239e08?source=cve

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