CVE-2008-2526 in WT Gallery
Summary
by MITRE
Cross-site scripting (XSS) vulnerability in the WT Gallery (aka wt_gallery) extension 2.6.2 and earlier for TYPO3 allows remote attackers to inject arbitrary web script or HTML via unspecified vectors.
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Analysis
by VulDB Data Team • 11/12/2017
The CVE-2008-2526 vulnerability represents a critical cross-site scripting flaw within the WT Gallery extension for TYPO3 content management system. This vulnerability affects versions 2.6.2 and earlier, making it a significant security concern for organizations utilizing TYPO3 platforms. The vulnerability stems from insufficient input validation and output sanitization mechanisms within the extension's codebase, creating an attack surface that malicious actors can exploit to execute arbitrary web scripts or HTML content within the context of users' browsers.
The technical nature of this vulnerability aligns with CWE-79, which specifically addresses cross-site scripting flaws in software applications. The flaw occurs when user-supplied input is not properly sanitized before being rendered in web pages, allowing attackers to inject malicious scripts that can persist and execute in the victim's browser. In the case of WT Gallery extension, the unspecified vectors suggest that the vulnerability may exist across multiple input points within the extension's functionality, potentially including form fields, URL parameters, or administrative interfaces where user data is processed and displayed.
The operational impact of this vulnerability extends beyond simple script injection, as it provides attackers with the capability to perform session hijacking, deface websites, steal sensitive user information, or redirect victims to malicious domains. Given that TYPO3 is widely used for enterprise and government websites, the potential damage from such an attack could be substantial. Attackers could leverage this vulnerability to compromise user sessions, access sensitive administrative functions, or use the compromised site as a launching point for further attacks against the broader network infrastructure. The persistence of XSS attacks through this vulnerability means that once exploited, malicious code can continue to affect users until the vulnerability is patched or the affected pages are updated.
Organizations should prioritize immediate remediation through upgrading to a patched version of the WT Gallery extension, as no specific mitigations exist for the vulnerable versions. The ATT&CK framework categorizes this vulnerability under T1566, which covers credential access through social engineering and web application attacks, emphasizing the need for comprehensive security measures including regular vulnerability assessments, input validation controls, and web application firewalls. Additionally, implementing proper output encoding mechanisms and conducting thorough security testing of third-party extensions can help prevent similar vulnerabilities from being introduced into TYPO3 environments, ensuring robust protection against persistent cross-site scripting threats that could compromise entire web applications.