CVE-2012-1782 in OSQA
Summary
by MITRE
Multiple cross-site scripting (XSS) vulnerabilities in questions/ask in OSQA 3b allow remote attackers to inject arbitrary web script or HTML via the (1) url bar or (2) picture bar.
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Analysis
by VulDB Data Team • 02/09/2025
The vulnerability identified as CVE-2012-1782 represents a critical cross-site scripting flaw discovered in OSQA version 3b, specifically within the questions/ask functionality of this open-source question-and-answer platform. This vulnerability type falls under the Common Weakness Enumeration category CWE-79, which classifies improper neutralization of input during web output rendering as a fundamental web application security weakness. The flaw enables remote attackers to execute malicious scripts in the context of other users' browsers through the injection of arbitrary web script or HTML code.
The technical implementation of this vulnerability occurs within the parameter handling mechanisms of the OSQA application's question submission process. Attackers can exploit this weakness by manipulating the url bar or picture bar input fields during question creation, bypassing the platform's input validation controls. The vulnerability specifically affects the web application's sanitization routines that should normally filter or escape user-provided content before rendering it in web pages. This failure in input sanitization creates an environment where malicious payloads can be stored and subsequently executed when other users view the affected content.
The operational impact of CVE-2012-1782 extends beyond simple script execution, as it provides attackers with the capability to hijack user sessions, steal sensitive information, or perform actions on behalf of authenticated users. The vulnerability affects the entire user base of the affected OSQA instance, making it particularly dangerous in environments where multiple users interact with the platform. Attackers could potentially use this vulnerability to establish persistent access to user accounts, manipulate forum content, or redirect users to malicious websites. The attack vector is particularly concerning because it requires no special privileges beyond normal user access to the platform, making it accessible to anyone with basic platform usage knowledge.
Mitigation strategies for this vulnerability should focus on implementing comprehensive input validation and output encoding mechanisms throughout the application. The recommended approach involves deploying strict sanitization routines that filter or escape all user-provided content before storage or display, aligning with the ATT&CK technique T1059.001 for command and scripting interpreter. Organizations should also implement Content Security Policy headers to limit the sources from which scripts can be executed, and consider deploying web application firewalls to detect and block malicious input patterns. Regular security audits and code reviews should specifically target input handling routines to prevent similar vulnerabilities from emerging in future versions of the platform. The vulnerability highlights the critical importance of implementing defense-in-depth strategies and proper input validation as fundamental security controls within web applications.