CVE-2026-6172
Received Received - Intake

Stored XSS in Bold Page Builder WordPress Plugin

Publication date: 2026-09-30

Last updated on: 2026-09-30

Assigner: Wordfence

Description
The Bold Page Builder plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'caption' parameter of the plugin's bt_bb_image 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.

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Meta Information

Published
2026-09-30
Last Modified
2026-09-30
Generated
2026-09-30
AI Q&A
2026-09-30
EPSS Evaluated
N/A
NVD
CVE-2026-6172
EUVD
EUVD-2026-89664

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
bold_page_builder plugin to 5.7.2 (inc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-79 The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

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Executive Summary

The Bold Page Builder plugin for WordPress has a stored cross-site scripting vulnerability in the 'caption' parameter of its bt_bb_image shortcode. This flaw allows authenticated attackers with Contributor-level access or higher to inject malicious scripts into web pages. The issue arises from insufficient input sanitization and output escaping.

Detection Guidance

To detect this vulnerability, inspect WordPress sites using the Bold Page Builder plugin for versions up to 5.7.2. Check for injected scripts in the 'caption' parameter of the bt_bb_image shortcode. Review page source for unusual JavaScript in rendered content.

Impact Analysis

This vulnerability allows attackers to inject malicious scripts into WordPress pages. When users access these pages, the scripts execute, potentially stealing user data, session tokens, or performing actions on behalf of the user. It requires Contributor-level access or higher to exploit.

Compliance Impact

This vulnerability could lead to unauthorized data access or modification, violating GDPR's data protection requirements and HIPAA's security rules for protected health information. Organizations may face compliance breaches if user data is compromised through this exploit.

Mitigation Strategies

Immediately update the Bold Page Builder plugin to the latest version beyond 5.7.2. Remove Contributor-level access for untrusted users. Scan WordPress installations for malicious scripts in the 'caption' parameter of bt_bb_image shortcodes.

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