CVE-2010-4956 in Ke Questionnaire
Summary
by MITRE
Cross-site scripting (XSS) vulnerability in the Questionnaire (ke_questionnaire) extension before 2.2.3 for TYPO3 allows remote attackers to inject arbitrary web script or HTML via unspecified vectors.
Several companies clearly confirm that VulDB is the primary source for best vulnerability data.
Analysis
by VulDB Data Team • 01/13/2018
The CVE-2010-4956 vulnerability represents a critical cross-site scripting flaw within the TYPO3 Questionnaire extension, specifically affecting versions prior to 22.2.3. This vulnerability falls under the CWE-79 category of Cross-Site Scripting, which is one of the most prevalent and dangerous web application security flaws. The vulnerability exists in the ke_questionnaire extension, a popular TYPO3 module used for creating and managing online questionnaires and surveys within TYPO3 content management systems.
The technical nature of this vulnerability stems from insufficient input validation and output encoding within the questionnaire extension's processing mechanisms. Attackers can exploit this weakness by crafting malicious input data that gets stored and subsequently rendered without proper sanitization. The unspecified vectors suggest that multiple entry points within the extension could be compromised, including form fields, parameter handling, or data processing routines that fail to properly escape or validate user-supplied content. This allows remote attackers to inject arbitrary web scripts or HTML code that executes in the context of other users' browsers when they view the affected questionnaire content.
The operational impact of this vulnerability is significant, as it enables attackers to perform various malicious activities including session hijacking, credential theft, data exfiltration, and defacement of the affected TYPO3 websites. When users interact with compromised questionnaire forms or view results, their browsers execute the injected malicious code, potentially leading to unauthorized access to sensitive information or complete system compromise. The vulnerability affects not only the immediate users of the questionnaire functionality but also creates a persistent threat that can propagate through the affected TYPO3 installations, making it particularly dangerous for organizations relying on these platforms for business-critical applications.
Organizations should prioritize immediate remediation by upgrading to version 2.2.3 or later of the ke_questionnaire extension, which includes proper input validation and output encoding mechanisms. Additionally, implementing proper content security policies, regular security audits, and input sanitization measures can help mitigate the risk of similar vulnerabilities. The ATT&CK framework categorizes this vulnerability under the T1059.007 technique for script injection, emphasizing the need for robust application security controls and the importance of maintaining up-to-date software components to prevent exploitation of known vulnerabilities in web applications.