CVE-2023-37742 in WebBoss.io
Summary
by MITRE • 07/21/2023
WebBoss.io CMS before v3.6.8.1 was discovered to contain a reflected cross-site scripting (XSS) vulnerability.
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Analysis
by VulDB Data Team • 01/18/2026
The vulnerability identified as CVE-2023-37742 represents a critical security flaw in WebBoss.io CMS versions prior to v3.6.8.1, specifically classified as a reflected cross-site scripting vulnerability under CWE-79. This type of vulnerability occurs when a web application includes untrusted data from HTTP request parameters directly into web pages without proper sanitization or encoding, creating an avenue for malicious actors to inject client-side scripts into web browsers. The flaw manifests when user input is reflected back in the application's response without adequate validation, allowing attackers to execute arbitrary JavaScript code within the context of a victim's browser session.
The technical exploitation of this reflected XSS vulnerability in WebBoss.io CMS occurs when an attacker crafts a malicious URL containing crafted script payloads that are then reflected back to the victim's browser through the vulnerable application. The vulnerability is particularly concerning because it affects the core CMS functionality where user input is processed and displayed without proper security controls. Attackers can leverage this weakness to steal session cookies, perform unauthorized actions on behalf of users, redirect victims to malicious sites, or even deface the website content. The reflected nature of the vulnerability means that the malicious script is not stored on the server but is instead executed in response to a crafted request, making it difficult to detect through traditional server-side scanning methods.
The operational impact of this vulnerability extends beyond simple data theft or website defacement, as it can enable more sophisticated attacks within the context of the compromised system. Attackers can use the XSS vulnerability to establish persistent access patterns, manipulate user interfaces, or conduct session hijacking attacks that compromise user authentication tokens. The vulnerability affects the integrity and confidentiality of the CMS environment, potentially allowing unauthorized access to administrative functions and sensitive content management features. From an ATT&CK framework perspective, this vulnerability maps to techniques such as T1059.007 (Command and Scripting Interpreter: JavaScript) and T1566.001 (Phishing: Spearphishing Attachment), as it enables attackers to execute malicious scripts and deliver payloads through crafted web requests.
Mitigation strategies for CVE-2023-37742 should prioritize immediate patching of the WebBoss.io CMS to version 3.6.8.1 or later, which contains the necessary security fixes. Organizations should implement comprehensive input validation and output encoding mechanisms throughout the application to prevent the reflection of untrusted data. The implementation of Content Security Policy (CSP) headers can provide additional protection against XSS attacks by restricting the sources from which scripts can be executed. Security measures should include regular vulnerability assessments, web application firewalls, and monitoring for suspicious user activity patterns that might indicate exploitation attempts. Additionally, security awareness training for administrators and developers can help prevent the introduction of similar vulnerabilities in custom code extensions or modifications to the CMS. The vulnerability underscores the importance of maintaining up-to-date software versions and implementing robust security controls as outlined in industry standards such as OWASP Top 10 and NIST Cybersecurity Framework.