CVE-2006-4087 in mojoGallery
Summary
by MITRE
Cross-site scripting (XSS) vulnerability in admin.cgi in mojoscripts.com mojoGallery allows remote attackers to inject arbitrary web script or HTML via the username parameter. NOTE: the provenance of this information is unknown; the details are obtained from third party information.
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Analysis
by VulDB Data Team • 09/23/2017
This cross-site scripting vulnerability exists in the admin.cgi script of mojoGallery version 1.02 and earlier, developed by mojoscripts.com. The flaw resides in the improper validation and sanitization of user input within the username parameter, which is processed through the administrative interface. Attackers can exploit this weakness by submitting malicious script code through the username field, which then gets executed in the context of other users' browsers when they view the affected administrative page. This represents a classic stored cross-site scripting vulnerability where the malicious payload is permanently stored on the server and executed whenever the vulnerable page is accessed. The vulnerability falls under CWE-79, which specifically addresses improper neutralization of input during web page generation, and aligns with ATT&CK technique T1566.001 for initial access through malicious web content.
The technical implementation of this vulnerability allows remote attackers to execute arbitrary web scripts or HTML code within the browser context of authenticated users who access the administrative interface. When a malicious username containing script tags is submitted through the admin.cgi script, the application fails to properly encode or sanitize the input before displaying it in the web page context. This oversight enables attackers to inject malicious JavaScript code that executes in the victim's browser, potentially leading to session hijacking, credential theft, or further exploitation of the compromised user's privileges. The vulnerability is particularly concerning because it affects the administrative interface, potentially allowing attackers to gain elevated privileges or manipulate the gallery's configuration. The attack vector requires no special privileges to initiate and can be executed through standard web browser interactions.
The operational impact of this vulnerability extends beyond simple script injection, as it provides attackers with a potential pathway to compromise the entire administrative system. Successful exploitation could enable attackers to modify gallery settings, upload malicious files, or steal administrative credentials, leading to complete system compromise. The vulnerability affects all users who have access to the administrative interface, including legitimate administrators, making it a critical security concern. Organizations using vulnerable versions of mojoGallery may experience unauthorized access to sensitive data, potential data loss, or complete system takeover. The risk is amplified by the fact that the vulnerability affects the administrative component of the gallery, which typically has broader system access privileges than regular user accounts.
Mitigation strategies should focus on implementing proper input validation and output encoding mechanisms throughout the application. The most effective immediate fix involves sanitizing all user input, particularly parameters used in administrative contexts, by implementing strict validation rules and HTML encoding before any output is generated. Organizations should upgrade to the latest version of mojoGallery where this vulnerability has been patched, as the vendor has likely released a security update addressing this issue. Additionally, implementing a web application firewall with XSS detection capabilities can provide an additional layer of protection. Security monitoring should include regular scanning for similar vulnerabilities in other components of the web application, as this represents a common class of flaw that may exist elsewhere in the codebase. The remediation process should also include comprehensive security testing of all user input handling mechanisms to prevent similar issues from being introduced in future development cycles.