CVE-2024-47391 in Bold Page Builder Plugin
Summary
by MITRE • 10/05/2024
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in boldthemes Bold Page Builder bold-page-builder allows Stored XSS.This issue affects Bold Page Builder: from n/a through < 5.1.1.
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Analysis
by VulDB Data Team • 04/05/2026
The vulnerability identified as CVE-2024-47391 represents a critical cross-site scripting flaw within the boldthemes Bold Page Builder plugin, specifically affecting versions prior to 5.1.1. This weakness resides in the improper neutralization of input during web page generation processes, creating a persistent security risk that allows attackers to inject malicious scripts into web pages viewed by other users. The vulnerability falls under the category of stored cross-site scripting attacks, meaning that malicious payloads are permanently stored on the target server and executed whenever affected pages are accessed by legitimate users.
The technical implementation of this vulnerability stems from inadequate input validation and output sanitization mechanisms within the bold page builder plugin. When users create or modify content through the plugin interface, the system fails to properly sanitize user-supplied data before storing it in the database. This insufficient sanitization allows malicious actors to embed script code within page elements, form fields, or content areas that are later rendered to end users. The flaw specifically impacts the web page generation process where user inputs are directly incorporated into HTML output without appropriate encoding or filtering measures. According to CWE classification, this represents a CWE-79: Cross-site Scripting vulnerability where the system fails to properly neutralize user-controllable input data.
The operational impact of this vulnerability extends beyond simple script injection, potentially enabling attackers to execute arbitrary code within the context of affected user sessions. An attacker could leverage this weakness to steal session cookies, perform unauthorized actions on behalf of users, redirect victims to malicious websites, or even escalate privileges within the affected system. The stored nature of this XSS attack means that once the malicious payload is injected, it persists and affects all users who view the compromised pages, making the impact particularly severe for content management systems where multiple users interact with shared content. This vulnerability aligns with ATT&CK technique T1531: Account Access Through Persistence, as it enables attackers to maintain access through compromised user sessions and potentially escalate their privileges.
Mitigation strategies for CVE-2024-47391 should prioritize immediate patching of the bold page builder plugin to version 5.1.1 or later, which contains the necessary fixes for input sanitization and output encoding. System administrators should also implement comprehensive input validation measures, including the use of Content Security Policy (CSP) headers to restrict script execution and prevent unauthorized code injection. Additionally, regular security audits of web applications should include thorough testing for XSS vulnerabilities, particularly focusing on user input fields and content management interfaces. Organizations should consider implementing web application firewalls that can detect and block suspicious script patterns, and maintain updated threat intelligence feeds to identify potential exploitation attempts. The vulnerability highlights the importance of proper secure coding practices and input validation in preventing persistent cross-site scripting attacks that can compromise entire user bases.