CVE-2018-18261 in Super CMS
Summary
by MITRE
In waimai Super Cms 20150505, there is an XSS vulnerability via the /admin.php/Foodcat/addsave fcname parameter.
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Analysis
by VulDB Data Team • 08/29/2023
The vulnerability identified as CVE-2018-18261 affects the waimai Super Cms version 20150505, specifically targeting the administrative interface through the Foodcat/addsave endpoint. This issue represents a classic cross-site scripting vulnerability that allows attackers to inject malicious scripts into the web application's response. The vulnerability manifests when the fcname parameter is processed during the food category addition save operation, creating an opportunity for unauthorized code execution within the context of authenticated user sessions.
The technical flaw resides in insufficient input validation and output encoding within the administrative control panel of the CMS system. When administrators or authorized users navigate to the food category management section and attempt to add new categories, the fcname parameter fails to properly sanitize user-supplied input before rendering it back to the browser. This lack of proper sanitization creates a direct pathway for attackers to inject malicious JavaScript code that executes in the victim's browser context. The vulnerability operates under CWE-79 which categorizes cross-site scripting flaws as weaknesses in input validation and output encoding mechanisms. The attack vector specifically targets the administrative interface where privileged users perform routine operations, making it particularly dangerous as it can be exploited to escalate privileges or gain unauthorized access to sensitive administrative functions.
The operational impact of this vulnerability extends beyond simple script injection, as it can be leveraged for more sophisticated attacks within the targeted environment. An attacker who successfully exploits this vulnerability can execute malicious scripts in the context of authenticated administrator sessions, potentially leading to complete system compromise. The vulnerability enables attackers to steal session cookies, redirect users to malicious sites, modify administrative content, or even escalate privileges to gain full control over the CMS. This represents a critical security risk for businesses relying on the waimai Super Cms for their online food ordering platforms, as it can result in data breaches, service disruption, and unauthorized modifications to critical business information. The attack can be executed through a simple HTTP request modification that injects malicious payloads into the fcname parameter, making exploitation relatively straightforward and accessible to attackers with basic web application penetration testing knowledge.
Mitigation strategies for CVE-2018-18261 must address both immediate remediation and long-term security improvements within the affected system. The primary recommendation involves implementing proper input validation and output encoding mechanisms that sanitize all user-supplied data before processing or rendering it within the web application. This includes applying strict parameter validation for the fcname input field, implementing proper HTML entity encoding for all dynamic content, and utilizing Content Security Policy headers to limit script execution. Organizations should also consider implementing the principle of least privilege by restricting administrative access to necessary personnel only, while ensuring regular security updates and patches are applied to all components of the CMS. Additionally, the vulnerability aligns with ATT&CK technique T1059 which covers command and scripting interpreter usage, as attackers can leverage XSS to execute malicious scripts within the victim's browser environment. Regular security monitoring and web application firewall deployment can help detect and prevent exploitation attempts, while comprehensive security awareness training for administrators can reduce the risk of successful social engineering attacks that might accompany such vulnerabilities.