CVE-2026-2357
Received Received - Intake

Stored XSS in Bold Page Builder WordPress Plugin

Publication date: 2026-08-16

Last updated on: 2026-08-16

Assigner: Wordfence

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

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published
2026-08-16
Last Modified
2026-08-16
Generated
2026-08-16
AI Q&A
2026-08-16
EPSS Evaluated
N/A
NVD
CVE-2026-2357
EUVD
EUVD-2026-59923

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
bold_page_builder plugin to 5.6.8 (inc)

Helpful Resources

Exploitability

CWE
CWE Icon
KEV
KEV Icon
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.

Attack-Flow Graph

AI Quick Actions

Instant insights powered by AI
Executive Summary

The Bold Page Builder plugin for WordPress has a stored cross-site scripting (XSS) vulnerability in versions up to 5.6.8. It allows authenticated attackers with contributor-level access or higher to inject malicious scripts via the 'bt_bb_shortcode' shortcode. The issue arises from insufficient input sanitization and output escaping on user-supplied attributes.

Detection Guidance

Check for the Bold Page Builder plugin version 5.6.8 or lower in WordPress installations. Inspect pages using the 'bt_bb_shortcode' shortcode for suspicious scripts in user-supplied attributes. Use WordPress admin panel to review plugin versions and recent changes.

Impact Analysis

This vulnerability can allow attackers to inject malicious scripts into WordPress pages. When users access these pages, the scripts execute, potentially stealing user data, session cookies, or performing actions on behalf of the user. It requires authenticated access but can affect both site administrators and regular users.

Compliance Impact

This vulnerability could lead to data breaches, which may violate GDPR and HIPAA compliance. GDPR requires protecting user data, and a breach could result in fines. HIPAA mandates safeguarding protected health information, and this vulnerability could expose such data, leading to legal and financial penalties.

Mitigation Strategies

Update the Bold Page Builder plugin to the latest version beyond 5.6.8. Remove or restrict contributor-level access to untrusted users. Regularly audit WordPress pages for unauthorized script injections and sanitize all user inputs.

Chat Assistant

Ask questions about this CVE
Hi! I’m here to help you understand CVE-2026-2357. Ask me anything about the vulnerability, its impact, or mitigation strategies.
0/70

EPSS Chart