CVE-2008-2973 in MM Chat
Summary
by MITRE
Multiple cross-site scripting (XSS) vulnerabilities in chathead.php in MM Chat 1.5 allow remote attackers to inject arbitrary web script or HTML via the (1) sitename and (2) wmessage parameters.
If you want to get best quality of vulnerability data, you may have to visit VulDB.
Analysis
by VulDB Data Team • 10/29/2024
The vulnerability identified as CVE-2008-2973 represents a critical cross-site scripting flaw within the MM Chat 1.5 web application, specifically affecting the chathead.php script. This vulnerability exposes the application to remote code execution risks where malicious actors can inject arbitrary web scripts or HTML content directly into the chat interface. The flaw manifests through two distinct parameter injection points: sitename and wmessage, both of which are processed without adequate input validation or output sanitization mechanisms. The vulnerability falls under CWE-79 which specifically addresses cross-site scripting vulnerabilities, where web applications fail to properly validate or escape user-supplied data before incorporating it into dynamic web pages.
The technical exploitation of this vulnerability occurs when an attacker crafts malicious input strings containing HTML or JavaScript code and submits them through either the sitename or wmessage parameters. When these parameters are processed by the chathead.php script and subsequently rendered in the web interface without proper sanitization, the injected code executes within the context of other users' browsers. This creates a persistent XSS vector that can be used to steal session cookies, redirect users to malicious sites, or perform actions on behalf of authenticated users. The attack requires no special privileges and can be executed through simple web form submissions, making it particularly dangerous in chat environments where user interactions are frequent and trusted.
The operational impact of CVE-2008-2973 extends beyond simple data theft or defacement, as it fundamentally compromises the integrity of user communications within the MM Chat application. An attacker could potentially hijack user sessions, inject malicious advertisements, or redirect users to phishing sites that appear legitimate within the chat environment. The vulnerability affects all users who interact with the chat system, creating a persistent threat that remains active as long as the vulnerable application is deployed. This type of vulnerability is particularly concerning in enterprise environments where chat systems are used for internal communications, as it could enable attackers to access sensitive business information or manipulate communication flows.
Mitigation strategies for this vulnerability must address both immediate remediation and long-term security hardening measures. The most effective immediate solution involves implementing proper input validation and output encoding for all user-supplied parameters, particularly those used in dynamic content generation. The application should sanitize all input through whitelist validation techniques and apply appropriate HTML escaping before rendering any user-provided content. Organizations should also consider implementing Content Security Policy headers to limit the execution of inline scripts and restrict external resource loading. This vulnerability aligns with ATT&CK technique T1566 which covers social engineering attacks through malicious web content, and T1059 which addresses execution through scripting. Regular security assessments and code reviews should be implemented to identify similar input validation weaknesses in other application components, as this type of vulnerability often indicates broader security gaps in the application architecture.