CVE-2007-6364 in JLMForo System
Summary
by MITRE
Cross-site scripting (XSS) vulnerability in modificarPerfil.php in JLMForo System allows remote authenticated users to inject arbitrary web script or HTML via a signature.
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Analysis
by VulDB Data Team • 11/05/2017
The CVE-2007-6364 vulnerability represents a critical cross-site scripting flaw within the JLMForo System's modificarPerfil.php component that exposes web applications to persistent security risks. This vulnerability specifically targets the user profile modification functionality, where authenticated users can manipulate the signature field to inject malicious scripts. The flaw demonstrates a classic XSS vulnerability pattern where user input is not properly sanitized or validated before being rendered back to other users, creating a persistent vector for malicious code execution.
The technical implementation of this vulnerability stems from inadequate input validation mechanisms within the perfil modification system. When users update their profile signatures, the system fails to properly escape or filter special characters that could be interpreted as HTML or JavaScript code. This allows attackers to embed malicious scripts within the signature field that execute in the context of other users' browsers when they view the modified profile. The vulnerability operates at the application layer and requires authentication to exploit, making it a stored XSS variant that can affect multiple users over time.
From an operational impact perspective, this vulnerability creates significant security implications for forum systems that rely on user-generated content and profile information. Attackers can leverage this flaw to steal session cookies, redirect users to malicious sites, perform actions on behalf of victims, or even execute arbitrary commands within the victim's browser context. The stored nature of the vulnerability means that once exploited, malicious payloads persist until manually removed by administrators, potentially affecting numerous users over extended periods. This type of vulnerability directly violates security principles outlined in the OWASP Top Ten and aligns with CWE-79, which specifically addresses cross-site scripting vulnerabilities in web applications.
The mitigation strategies for CVE-2007-6364 should encompass multiple defensive layers including immediate input sanitization and output encoding of all user-provided data. Implementing proper HTML escaping mechanisms before rendering user content ensures that potentially malicious scripts are treated as literal text rather than executable code. Additionally, employing Content Security Policy headers can provide an additional barrier against script execution, while regular security audits and code reviews should identify similar input validation gaps. The vulnerability's classification under the ATT&CK framework would place it within the T1059.007 technique category for script injection, emphasizing the need for comprehensive application security controls that address both the immediate flaw and broader defensive measures against similar threats in web applications.