CVE-2025-47488 in Bold Page Builder Plugin
Summary
by MITRE • 05/07/2025
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in boldthemes Bold Page Builder allows DOM-Based XSS. This issue affects Bold Page Builder: from n/a through 5.3.2.
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Analysis
by VulDB Data Team • 05/07/2025
This cross-site scripting vulnerability resides within the boldthemes Bold Page Builder component, specifically manifesting as a DOM-based XSS flaw that emerges during web page generation processes. The vulnerability stems from inadequate input sanitization mechanisms that fail to properly neutralize malicious script content before it gets rendered in the browser environment. Attackers can exploit this weakness by injecting malicious JavaScript code through input fields or parameters that are subsequently processed and displayed within the generated web pages.
The technical implementation of this vulnerability allows threat actors to manipulate the Document Object Model directly through crafted input sequences that bypass standard security filters. This DOM-based XSS variant differs from traditional reflected or stored XSS because it leverages the browser's DOM manipulation capabilities rather than server-side processing. The vulnerability exists in versions ranging from unspecified initial release through 5.3.2, indicating a prolonged period during which this security gap remained unaddressed. The affected component specifically processes user-generated content during page building operations, creating multiple potential attack vectors.
The operational impact of this vulnerability extends beyond simple script execution as it enables attackers to perform session hijacking, defacement of web content, and redirection to malicious sites. An attacker could potentially steal user credentials, access sensitive data, or manipulate the functionality of the affected web pages. The DOM-based nature of the vulnerability means that even if server-side input validation appears robust, client-side script execution can still be compromised, making this particularly dangerous in environments where user interaction is expected. This vulnerability affects not only the immediate functionality but also the overall security posture of websites utilizing this page builder component.
Mitigation strategies should focus on implementing comprehensive input validation and output encoding mechanisms that neutralize potentially malicious content before DOM manipulation occurs. The recommended approach includes employing Content Security Policy headers, implementing proper sanitization routines, and ensuring all user inputs undergo rigorous validation before being processed. Organizations should also consider updating to the latest available version of the Bold Page Builder component where this vulnerability has been addressed. The CWE-79 standard specifically addresses Cross-Site Scripting vulnerabilities, while ATT&CK technique T1059.007 covers script injection methods that would be applicable to this exploitation scenario. Regular security assessments and input validation testing should be implemented to prevent similar vulnerabilities from emerging in other components of the web application stack.