CVE-2008-6299 in Joomla
Summary
by MITRE
Multiple cross-site scripting (XSS) vulnerabilities in Joomla! 1.5.7 and earlier allow remote authenticated users with certain privileges to inject arbitrary web script or HTML via (1) the title and description parameters to the com_weblinks module and (2) unspecified vectors in the com_content module related to "article submission."
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Analysis
by VulDB Data Team • 04/21/2019
The vulnerability identified as CVE-2008-6299 represents a critical cross-site scripting flaw affecting Joomla! versions 1.5.7 and earlier, demonstrating the persistent challenges in content management system security. This vulnerability specifically targets the com_weblinks and com_content modules, exposing the platform to malicious injection attacks that can compromise user sessions and data integrity. The flaw operates by allowing authenticated users with specific privileges to inject malicious scripts through carefully crafted parameters, highlighting the importance of input validation in web applications. Such vulnerabilities underscore the fundamental principle that even privileged users within a system can pose significant security risks when proper sanitization controls are absent.
The technical implementation of this XSS vulnerability stems from insufficient validation of user-supplied input within the Joomla! content management framework. Attackers exploiting the com_weblinks module can manipulate the title and description parameters to inject malicious JavaScript code, while the com_content module presents similar risks during article submission processes. These vectors demonstrate how web applications must rigorously sanitize all user inputs regardless of the user's privilege level, as the attack surface extends beyond simple unauthenticated threats. The vulnerability aligns with CWE-79, which specifically addresses cross-site scripting weaknesses in software applications, and represents a classic example of how insufficient input filtering can create persistent security holes.
The operational impact of CVE-2008-6299 extends beyond simple script injection, potentially enabling attackers to perform session hijacking, deface websites, or redirect users to malicious domains. When authenticated users with privileges can inject code, the attack scope becomes significantly broader, as these users typically have access to sensitive administrative functions. The vulnerability creates opportunities for attackers to escalate privileges or manipulate content in ways that can damage organizational reputation and compromise sensitive data. This threat model aligns with ATT&CK technique T1566, which describes social engineering attacks involving malicious code injection, and demonstrates how internal privilege abuse can compound external security threats.
Organizations utilizing affected Joomla! versions should prioritize immediate patching and implement comprehensive input validation measures to prevent similar vulnerabilities from emerging. The remediation process should include thorough code reviews focusing on parameter handling within web applications, particularly in modules dealing with user-generated content. Security teams must establish robust monitoring protocols to detect anomalous user behavior patterns and implement web application firewalls to provide additional defense layers. The vulnerability serves as a reminder that content management systems require continuous security assessment and that the principle of least privilege must be strictly enforced to minimize potential attack vectors. Regular security audits and vulnerability assessments should be conducted to identify and remediate similar issues before they can be exploited by malicious actors.