CVE-2024-37432 in Esteem Plugin
Summary
by MITRE • 07/22/2024
Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in ThemeGrill Esteem allows Stored XSS.This issue affects Esteem: from n/a through 1.5.0.
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Analysis
by VulDB Data Team • 03/17/2025
The vulnerability identified as CVE-2024-37432 represents a critical security flaw in the ThemeGrill Esteem WordPress theme that enables stored cross-site scripting attacks. This weakness occurs during the web page generation process where input data is not properly sanitized or neutralized before being rendered in web pages. The vulnerability specifically affects versions of the Esteem theme ranging from the initial release through version 1.5.0, indicating a broad scope of impacted installations. The stored nature of this XSS vulnerability means that malicious scripts can be permanently injected into the web application's database and subsequently executed whenever affected pages are accessed by unsuspecting users.
This vulnerability falls under the CWE-79 category of Cross-site Scripting, which is classified as a fundamental web application security weakness that allows attackers to inject malicious client-side scripts into web pages viewed by other users. The improper neutralization of input during web page generation creates a pathway for attackers to bypass standard security measures that would typically protect against such attacks. When user-supplied data is directly incorporated into web page content without adequate sanitization, it creates opportunities for attackers to execute malicious JavaScript code in the context of the victim's browser session. The specific flaw in the Esteem theme demonstrates how theme developers may inadvertently create security gaps when handling user input in their template rendering processes.
The operational impact of this vulnerability extends beyond simple data theft or defacement, as it can enable sophisticated attack vectors including session hijacking, credential theft, and the delivery of malware to unsuspecting users. Attackers can exploit this vulnerability by injecting malicious scripts through various input fields within the theme's administrative interface or front-end forms, which are then stored in the database and executed whenever legitimate users access affected pages. This stored XSS capability transforms what might otherwise be a one-time exploitation attempt into a persistent threat that can affect multiple users over extended periods. The vulnerability particularly impacts WordPress site administrators and end users who may be tricked into viewing compromised pages, potentially leading to complete compromise of user sessions and sensitive data exposure.
Mitigation strategies for CVE-2024-37432 should prioritize immediate remediation through updating to the latest version of the ThemeGrill Esteem theme where the vulnerability has been addressed. Organizations should implement comprehensive input validation and output encoding mechanisms to prevent similar issues in their own web applications, following established security frameworks such as the OWASP Top Ten and NIST cybersecurity guidelines. The implementation of Content Security Policy headers can provide additional defense-in-depth measures to limit the impact of successful XSS attacks, while regular security audits and penetration testing should be conducted to identify and remediate similar vulnerabilities in custom web applications. Security teams should also consider implementing web application firewalls and monitoring systems to detect anomalous script injection attempts, as the ATT&CK framework suggests that XSS vulnerabilities are commonly exploited in initial access and persistence phases of cyber attacks.