CVE-2013-7077 in TYPO3
Summary
by MITRE
Cross-site scripting (XSS) vulnerability in the Backend User Administration Module in TYPO3 6.0.x before 6.0.12 and 6.1.x before 6.1.7 allows remote attackers to inject arbitrary web script or HTML via unspecified vectors.
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Analysis
by VulDB Data Team • 04/12/2026
The CVE-2013-7077 vulnerability represents a critical cross-site scripting flaw within TYPO3's Backend User Administration Module, affecting versions 6.0.x prior to 6.0.12 and 6.1.x prior to 6.1.7. This vulnerability falls under the CWE-79 category of Cross-Site Scripting, specifically targeting the administrative backend interface that handles user management operations. The flaw enables remote attackers to inject malicious web scripts or HTML content through unspecified vectors, potentially compromising the integrity of the TYPO3 content management system's administrative environment.
The technical implementation of this vulnerability occurs within the backend user administration module where user input is not properly sanitized or validated before being rendered in the web interface. Attackers can exploit this weakness by crafting malicious payloads that get executed when administrators view user-related information or perform administrative tasks within the affected TYPO3 versions. The unspecified vectors suggest that the vulnerability may exist across multiple input points within the user administration interface, including user names, email addresses, or other editable fields that are processed and displayed within the backend context.
The operational impact of CVE-2013-7077 is significant as it provides attackers with the ability to execute arbitrary code within the context of an administrator's browser session. This could lead to unauthorized access to sensitive administrative functions, data exfiltration, or the modification of user permissions and content. The vulnerability particularly affects organizations using TYPO3 versions within the affected ranges, as the backend user administration module is frequently accessed by system administrators who may be targeted by such attacks. The attack vector being remote means that exploitation does not require local system access or physical presence.
Security practitioners should prioritize patching affected TYPO3 installations to versions 6.0.12 or 6.1.7 and later, which contain the necessary fixes for this vulnerability. Additionally, implementing proper input validation and output encoding mechanisms within the application code can serve as defensive measures against similar XSS vulnerabilities. The ATT&CK framework categorizes this vulnerability under the T1059.007 technique for Scripting, as it involves the execution of malicious scripts through web-based interfaces. Organizations should also consider implementing Content Security Policy headers and regular security audits of their web applications to prevent exploitation of such vulnerabilities in the future.