CVE-2018-12905 in joyplus-cms
Summary
by MITRE
joyplus-cms 1.6.0 has XSS in admin_player.php, related to manager/index.php "system manage" and "add" actions.
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Analysis
by VulDB Data Team • 03/29/2023
The vulnerability CVE-2018-12905 represents a cross-site scripting flaw discovered in joyplus-cms version 1.6.0 affecting the admin_player.php component. This security weakness specifically manifests within the manager/index.php interface during "system manage" and "add" actions, creating a persistent vector for malicious code injection. The vulnerability stems from inadequate input validation and output sanitization mechanisms that fail to properly filter user-supplied data before rendering it within the web application's administrative interface.
The technical implementation of this XSS vulnerability occurs when administrators interact with the system management functions or when adding new entries through the manager/index.php module. The flaw allows attackers to inject malicious scripts that execute in the context of the victim's browser session, particularly targeting privileged administrator accounts. When users navigate to pages containing unfiltered user input, the malicious JavaScript code executes automatically, potentially leading to session hijacking, credential theft, or unauthorized administrative actions. This vulnerability operates under CWE-79 which categorizes cross-site scripting as a code injection flaw where untrusted data is improperly handled during web page generation.
The operational impact of this vulnerability extends beyond simple script execution as it compromises the integrity of the administrative interface. An attacker who successfully exploits this flaw could gain unauthorized access to sensitive system information, modify content, or even escalate privileges within the CMS environment. The persistent nature of the vulnerability means that malicious payloads remain active until the affected pages are refreshed or the server is restarted, providing attackers with extended opportunities for exploitation. This type of vulnerability aligns with ATT&CK technique T1059.007 which covers scripting languages, as attackers can leverage the XSS capability to execute malicious scripts within the victim's browser context.
Mitigation strategies for CVE-2018-12905 require immediate implementation of proper input validation and output encoding mechanisms throughout the application's administrative components. The development team must ensure that all user-supplied data is properly sanitized before being rendered in web pages, particularly within the manager/index.php interface. Additionally, implementing Content Security Policy headers can provide an additional layer of protection against script execution. Organizations should also consider upgrading to a patched version of joyplus-cms if available, as the vulnerability affects the specific 1.6.0 release. Regular security audits and input validation testing should be conducted to prevent similar issues in other components of the system, ensuring that all user-facing interfaces properly handle untrusted data through appropriate sanitization and encoding techniques.