CVE-2026-6170
Received Received - Intake

Stored Cross-Site Scripting 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 'images' parameter of the plugin's bt_bb_css_image_grid 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-2026-6170
EUVD
EUVD-2026-89670

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 (XSS) vulnerability in the 'images' parameter of its bt_bb_css_image_grid shortcode. This flaw exists in versions up to 5.7.2 due to insufficient input sanitization and output escaping. Authenticated attackers with Contributor-level access or higher can inject malicious scripts into pages.

Detection Guidance

This vulnerability can be detected by checking for the presence of the Bold Page Builder plugin versions up to 5.7.2. Inspect WordPress installations for the plugin and verify its version. Look for unauthorized script injections in pages using the bt_bb_css_image_grid shortcode.

Impact Analysis

This vulnerability allows attackers to inject arbitrary web scripts into WordPress pages. When users access these pages, the injected scripts execute, potentially stealing user data, session cookies, or performing actions on behalf of the user. It requires authenticated access but can affect all visitors to the compromised pages.

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

Update the Bold Page Builder plugin to the latest version, which should address the Stored Cross-Site Scripting vulnerability in the bt_bb_css_image_grid shortcode.

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