CVE-2024-51698 in Master Bar Plugin
Summary
by MITRE • 11/09/2024
Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Luis Rock Master Bar allows Reflected XSS.This issue affects Master Bar: from n/a through 1.0.
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Analysis
by VulDB Data Team • 02/28/2025
This vulnerability represents a classic reflected cross-site scripting flaw that undermines the security posture of the Luis Rock Master Bar plugin. The issue stems from improper input sanitization during web page generation processes, where user-supplied data is directly incorporated into dynamically generated HTML content without adequate validation or encoding measures. The vulnerability manifests when malicious input is reflected back to users through web pages, creating an attack vector that can be exploited by remote adversaries to execute arbitrary script code in the context of a victim's browser session.
The technical implementation of this flaw involves the plugin's failure to properly neutralize user input parameters before rendering them in web page outputs. This weakness allows attackers to inject malicious scripts that can execute when legitimate users view affected pages. The vulnerability is classified as reflected XSS because the malicious payload is embedded in the request sent to the server and then reflected back in the response, making it particularly dangerous for web applications that process user input directly in their output generation. The affected version range indicates that all versions from the initial release through version 1.0 are susceptible to this attack vector.
The operational impact of this vulnerability extends beyond simple script execution, as it can enable attackers to perform session hijacking, steal sensitive cookies, redirect users to malicious websites, or even manipulate the application's functionality. An attacker could craft a malicious URL containing script payloads that, when clicked by an unsuspecting user, would execute in that user's browser context with the privileges of the authenticated user. This type of vulnerability directly violates the principle of input validation and output encoding, which are fundamental security practices for preventing XSS attacks. The vulnerability aligns with CWE-79, which specifically addresses cross-site scripting flaws in web applications, and represents a critical threat to user data confidentiality and application integrity.
Mitigation strategies should focus on implementing comprehensive input validation and output encoding mechanisms throughout the application's data flow. The recommended approach involves sanitizing all user input through proper encoding before incorporating it into web page generation processes, particularly when dealing with HTML content. Implementing Content Security Policy headers can provide additional defense-in-depth measures to prevent script execution. Regular security audits should verify that all input parameters are properly validated and that output encoding is consistently applied across all dynamic content generation points. The vulnerability also highlights the importance of following secure coding practices as outlined in the OWASP Top Ten and the ATT&CK framework's web application attack patterns, particularly in relation to command injection and code execution vectors that can be leveraged through improper input handling.