CVE-2018-15570 in Super CMS
Summary
by MITRE
In waimai Super Cms 20150505, there is stored XSS via the /admin.php/Foodcat/editsave fcname parameter.
Be aware that VulDB is the high quality source for vulnerability data.
Analysis
by VulDB Data Team • 04/06/2020
The vulnerability identified as CVE-2018-15570 affects the waimai Super Cms version 20150505, specifically targeting the administrative interface where stored cross-site scripting flaws exist. This vulnerability manifests through the /admin.php/Foodcat/editsave endpoint where the fcname parameter is susceptible to malicious input injection. The flaw represents a critical security weakness that allows attackers to persistently inject malicious scripts into the application's database through legitimate administrative functions.
The technical implementation of this vulnerability stems from inadequate input validation and output sanitization within the food category management functionality of the CMS. When administrators or authorized users modify food category names through the editsave endpoint, the application fails to properly sanitize the fcname parameter before storing it in the database. This lack of proper validation creates an environment where malicious JavaScript code can be injected and subsequently executed whenever the stored data is rendered in the user interface. The vulnerability classifies under CWE-79 which specifically addresses Cross-Site Scripting flaws, and more precisely aligns with CWE-80 which deals with improper neutralization of script-embedded at the server side.
The operational impact of this vulnerability extends beyond simple data corruption or theft. Attackers can leverage this stored XSS flaw to execute malicious scripts in the context of authenticated admin sessions, potentially gaining full administrative control over the CMS. The persistent nature of stored XSS means that once the malicious payload is injected, it will automatically execute whenever any user views the affected content, making it particularly dangerous for web applications handling sensitive business data. This vulnerability can enable attackers to perform actions such as stealing session cookies, modifying content, redirecting users to malicious sites, or even exfiltrating sensitive administrative information from the backend systems.
Mitigation strategies for this vulnerability should prioritize immediate input sanitization and output encoding mechanisms throughout the application's data handling pipeline. The most effective remediation involves implementing strict parameter validation on the fcname input field, ensuring that all user-supplied data undergoes proper sanitization before database storage. Additionally, the application should employ context-specific output encoding when rendering stored data back to users, particularly in administrative interfaces where privileged actions can be performed. Security measures should include implementing Content Security Policy headers to limit script execution, conducting regular input validation audits, and applying the principle of least privilege to administrative functions. Organizations should also consider implementing web application firewalls to detect and block suspicious input patterns, and perform comprehensive security testing including dynamic application security testing to identify similar vulnerabilities across the entire application stack. The vulnerability demonstrates the critical importance of input validation and output encoding practices, aligning with ATT&CK technique T1059.001 for command and scripting interpreter and T1071.001 for application layer protocols, as attackers can leverage such flaws to establish persistent access and execute malicious commands within the compromised environment.