CVE-2013-1942 in ownCloud
Summary
by MITRE
Cross-site scripting (XSS) vulnerability in actionscript/Jplayer.as in the Flash SWF component in jPlayer before 2.2.20, as used in ownCloud Server before 5.0.4 and other products, allows remote attackers to inject arbitrary web script or HTML via unspecified vectors, a different vulnerability than CVE-2013-2022 and CVE-2013-2023.
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Analysis
by VulDB Data Team • 03/31/2025
The vulnerability identified as CVE-2013-1942 represents a cross-site scripting flaw within the Flash SWF component of jPlayer library versions prior to 2.2.20. This vulnerability specifically affects the actionscript/Jplayer.as file and impacts the Flash-based media player component that was widely integrated into various web applications including ownCloud Server versions before 5.0.4. The flaw enables remote attackers to execute malicious web scripts or HTML code within the context of a victim's browser session, creating significant security risks for web applications that rely on this media player functionality.
The technical nature of this vulnerability stems from inadequate input validation and output encoding within the Flash SWF component's ActionScript implementation. The unspecified vectors mentioned in the description suggest that the vulnerability could be exploited through multiple attack paths within the media player's handling of user-supplied data or configuration parameters. This type of vulnerability falls under CWE-79 which specifically addresses Cross-Site Scripting flaws where untrusted data is improperly incorporated into web page content without proper sanitization or encoding. The vulnerability is distinct from CVE-2013-2022 and CVE-2013-2023, indicating that it represents a separate code path or implementation issue within the jPlayer library's Flash component.
The operational impact of CVE-2013-1942 extends beyond simple data theft or session hijacking, as it can enable attackers to perform a wide range of malicious activities through the compromised browser session. Attackers could potentially redirect users to malicious websites, steal sensitive information, manipulate the media player functionality, or even leverage the vulnerability as a stepping stone for more sophisticated attacks. The Flash-based nature of the vulnerability means that exploitation could occur in environments where Flash plugins are enabled, potentially affecting a broad user base depending on the application's deployment. This vulnerability particularly impacts web applications that use jPlayer for media playback, as the Flash component would be loaded and executed in the user's browser context.
Mitigation strategies for CVE-2013-1942 should prioritize immediate patching of affected jPlayer versions to 2.2.20 or later, along with updating ownCloud Server to version 5.0.4 or higher. Organizations should also implement Content Security Policy headers to limit the execution of inline scripts and restrict the sources from which scripts can be loaded. Additionally, input validation and output encoding mechanisms should be strengthened within applications that utilize jPlayer to prevent user-supplied data from being directly incorporated into Flash component parameters. The vulnerability demonstrates the importance of secure coding practices in multimedia components and highlights the risks associated with Flash-based web technologies, which have been increasingly deprecated due to security concerns. Security teams should also consider implementing network monitoring to detect potential exploitation attempts and maintain updated threat intelligence feeds to identify related vulnerabilities in similar multimedia libraries.