CVE-2024-41350 in bjyadmin
Summary
by MITRE • 08/29/2024
bjyadmin commit a560fd5 is vulnerable to Cross Site Scripting (XSS) via Public/statics/umeditor1_2_3/php/imageUp.php
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Analysis
by VulDB Data Team • 03/11/2025
The vulnerability identified as CVE-2024-41350 affects the bjyadmin content management system at commit a560fd5 and represents a critical cross site scripting flaw located within the image upload functionality. This issue manifests in the Public/statics/umeditor1_2_3/php/imageUp.php file which processes image uploads through the umeditor rich text editor component. The vulnerability stems from insufficient input validation and sanitization of user-supplied data during the image upload process, creating an avenue for malicious actors to inject malicious scripts into the application's response.
The technical implementation of this vulnerability allows attackers to exploit the lack of proper sanitization mechanisms when processing file upload parameters. When users upload images through the affected endpoint, the application fails to adequately validate or escape special characters in file names or metadata, enabling attackers to inject malicious javascript code that gets executed in the context of other users' browsers. This represents a classic reflected cross site scripting vulnerability where user-controllable input directly influences the output without proper sanitization. The flaw aligns with CWE-79 which categorizes cross site scripting vulnerabilities as weaknesses in input validation and output encoding.
The operational impact of this vulnerability is significant as it enables attackers to perform various malicious activities including session hijacking, credential theft, defacement of web content, and redirection to malicious sites. An attacker could upload a specially crafted image file containing malicious javascript payload that would execute whenever the image is viewed or processed by the web application. This could lead to unauthorized access to administrative functions, data exfiltration, and persistent malicious presence within the application. The vulnerability affects all users who interact with the image upload functionality, making it particularly dangerous in multi-user environments where administrative privileges may be compromised.
Mitigation strategies should focus on implementing comprehensive input validation and output encoding mechanisms throughout the application stack. The primary fix involves sanitizing all user-supplied data before processing, particularly file names and metadata associated with uploaded files. Implementing proper Content Security Policy headers can provide additional defense in depth against script execution. Regular security code reviews and automated vulnerability scanning should be integrated into the development lifecycle to prevent similar issues. The remediation aligns with ATT&CK technique T1566 which addresses social engineering through malicious file attachments, and T1059 which covers command and scripting interpreters for execution. Organizations should also consider implementing web application firewalls and monitoring for suspicious file upload activities to detect potential exploitation attempts.