CVE-2018-18082 in Super CMS
Summary
by MITRE
XSS exists in Waimai Super Cms 20150505 via the fname parameter to the admin.php?m=Food&a=addsave or admin.php?m=Food&a=editsave URI.
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Analysis
by VulDB Data Team • 04/06/2020
The vulnerability identified as CVE-2018-18082 represents a cross-site scripting flaw within the Waimai Super Cms version 20150505, specifically affecting the food management functionality. This issue manifests through improper input validation and output encoding mechanisms that fail to adequately sanitize user-supplied data before it is processed and rendered within the web application interface. The vulnerability is present in two distinct endpoints: admin.php?m=Food&a=addsave and admin.php?m=Food&a=editsave, which handle the creation and modification of food items within the administrative panel. The fname parameter serves as the primary attack vector, allowing malicious actors to inject malicious scripts that can be executed in the context of other users' browsers who view the affected content.
This vulnerability falls under CWE-79 which categorizes cross-site scripting as a critical web application security weakness. The flaw enables attackers to execute arbitrary JavaScript code in the victim's browser, potentially leading to session hijacking, credential theft, or redirection to malicious websites. The attack occurs when an administrator or authorized user views a page containing the maliciously injected script, making this a stored XSS vulnerability since the malicious payload is persisted in the application's database or storage system. The impact is particularly concerning in administrative contexts where privileged users may be tricked into executing malicious code that could lead to complete system compromise or data exfiltration.
The operational impact of CVE-2018-18082 extends beyond simple script execution, as it can be leveraged to establish persistent access to the administrative interface. Attackers could potentially modify food listings, alter pricing information, or inject malicious content that could be served to customers. The vulnerability also aligns with ATT&CK technique T1059.007 which covers scripting languages, and T1566 which addresses spearphishing with attachments, as attackers might craft malicious payloads designed to exploit this vulnerability during targeted attacks. The exposure of administrative functions through this XSS flaw creates a pathway for attackers to escalate privileges and gain deeper access to the system's underlying data and functionality.
Mitigation strategies for this vulnerability should include immediate implementation of proper input sanitization and output encoding mechanisms throughout the application's codebase. All user-supplied data must be validated against a strict whitelist of acceptable characters and formats before being processed or stored. The application should implement Content Security Policy headers to limit script execution and prevent unauthorized code injection. Regular security auditing and penetration testing should be conducted to identify similar vulnerabilities across the entire codebase. Additionally, implementing proper access controls and monitoring mechanisms can help detect and prevent exploitation attempts. The fix should address both the immediate vulnerability and broader security practices to prevent similar issues from occurring in other parts of the application, aligning with the principle of defense in depth as recommended in cybersecurity frameworks such as NIST SP 800-53.