CVE-2007-4819 in Txx CMS
Summary
by MITRE
Multiple cross-site scripting (XSS) vulnerabilities in Txx CMS 0.2 allow remote attackers to inject arbitrary web script or HTML via unspecified vectors.
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Analysis
by VulDB Data Team • 10/06/2024
The CVE-2007-4819 vulnerability represents a critical security flaw in Txx CMS version 0.2 that exposes the system to multiple cross-site scripting attacks. This vulnerability classifies under CWE-79 as a failure to sanitize user input before rendering it in web pages, creating an avenue for malicious actors to execute unauthorized scripts within the context of other users' browsers. The vulnerability affects the content management system's handling of user-supplied data through unspecified input vectors, which typically include form fields, URL parameters, or any data that gets processed and displayed without proper validation or encoding.
The technical exploitation of this vulnerability occurs when an attacker crafts malicious script code that gets injected into the CMS through these unspecified vectors. The CMS fails to properly sanitize or escape the input data before it is rendered in web pages, allowing the injected scripts to execute in the browsers of unsuspecting users who visit affected pages. This creates a persistent threat where the malicious code can perform actions such as stealing session cookies, redirecting users to malicious sites, or modifying the content displayed to users. The vulnerability's impact extends beyond simple script execution as it can enable more sophisticated attacks including session hijacking and data exfiltration.
From an operational perspective, this vulnerability poses significant risks to organizations using Txx CMS 0.2, as it allows remote attackers to compromise user sessions and potentially gain unauthorized access to sensitive information. The attack surface is broad since XSS vulnerabilities often affect multiple application components, and the unspecified vectors suggest that the vulnerability may be present across various input points within the CMS. This makes the system particularly susceptible to automated exploitation and increases the likelihood of successful attacks. The vulnerability can be exploited through various attack vectors including email links, forum posts, or any mechanism that accepts user input and displays it in the web interface without proper sanitization.
Security professionals should implement comprehensive input validation and output encoding mechanisms to address this vulnerability. The recommended mitigations include implementing proper HTML escaping for all user-supplied content, utilizing content security policies to restrict script execution, and ensuring that all input validation occurs on both client and server sides. Additionally, regular security audits and penetration testing should be conducted to identify similar vulnerabilities in other components of the web application. Organizations should also consider implementing web application firewalls and monitoring systems to detect and prevent exploitation attempts. The vulnerability aligns with ATT&CK technique T1566 which describes the use of malicious web content to gain initial access, and T1059 which covers the execution of malicious code through web-based interfaces. The remediation efforts should focus on establishing secure coding practices and implementing proper data sanitization procedures to prevent similar vulnerabilities from emerging in future versions of the CMS.