CVE-2018-14973 in QCMS
Summary
by MITRE
An issue was discovered in QCMS 3.0.1. upload/System/Controller/backend/product.php has XSS.
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Analysis
by VulDB Data Team • 03/13/2020
The vulnerability identified as CVE-2018-14973 represents a cross-site scripting flaw within the QCMS 3.0.1 content management system specifically within the backend product management component. This issue exists in the file upload/System/Controller/backend/product.php which handles product-related operations in the administrative interface. The vulnerability arises from insufficient input validation and output sanitization mechanisms that fail to properly encode or escape user-supplied data before rendering it within the web application's response. Such weaknesses create an avenue for malicious actors to inject arbitrary JavaScript code into the application's response, potentially compromising the security of authenticated users who interact with the affected functionality.
This cross-site scripting vulnerability falls under the CWE-79 category of Cross-Site Scripting, which is classified as a critical security weakness in web applications. The flaw enables attackers to execute malicious scripts in the context of the victim's browser session, potentially allowing for session hijacking, credential theft, or unauthorized actions within the application. The vulnerability is particularly concerning in a content management system where administrative users have elevated privileges and access to sensitive data and system controls. The attack vector specifically targets the product management interface where administrators might upload product information, making the exploitation scenario more likely in environments where regular administrative activity occurs.
The operational impact of this vulnerability extends beyond simple script execution as it can facilitate more sophisticated attacks such as credential harvesting through session manipulation or redirection to malicious sites. An attacker who successfully exploits this vulnerability could potentially escalate privileges, access confidential administrative data, or manipulate product information to compromise the integrity of the entire e-commerce or content management platform. The vulnerability affects the application's integrity and availability by potentially disrupting normal administrative operations through malicious script injection. In enterprise environments, this flaw could lead to unauthorized data access, system compromise, or disruption of business-critical operations that depend on the CMS functionality.
Mitigation strategies for CVE-2018-14973 should prioritize immediate patching of the affected QCMS version to address the input validation and output encoding deficiencies in the product.php controller. Organizations should implement comprehensive input sanitization techniques including proper HTML encoding of user-supplied data before rendering in the application context, and employ Content Security Policy headers to limit script execution. The implementation of proper output encoding mechanisms such as HTML entity encoding for dynamic content and the adoption of secure coding practices that prevent XSS vulnerabilities should be enforced throughout the application. Additionally, regular security assessments and code reviews should be conducted to identify and remediate similar vulnerabilities in other components of the system. Network segmentation and monitoring solutions can help detect exploitation attempts, while user training on recognizing suspicious activities and maintaining secure browsing practices provides an additional layer of defense. The ATT&CK framework categorizes this vulnerability under the T1059.007 technique for Scripting, specifically targeting web-based scripting vulnerabilities that allow for persistent malicious code execution within user sessions.