CVE-2025-4119: Weitong Mall Auth Bypass Vulnerability

CVE-2025-4119 Overview

A critical improper access control vulnerability has been identified in Weitong Mall 1.0.0, a web-based e-commerce platform. This vulnerability exists in the Product Statistics Handler component, specifically in the /queryTotal endpoint. The flaw allows unauthenticated remote attackers to bypass access controls by manipulating the isDelete parameter, potentially exposing sensitive product statistics and business data.

Critical Impact

Remote attackers can exploit improper access controls to view deleted or restricted product data without authentication, potentially exposing sensitive business intelligence and product statistics.

Affected Products

• Weitong Mall 1.0.0

Discovery Timeline

• 2025-04-30 - CVE CVE-2025-4119 published to NVD
• 2025-05-16 - Last updated in NVD database

Technical Details for CVE-2025-4119

Vulnerability Analysis

This vulnerability stems from improper access controls (CWE-266) combined with Insecure Direct Object Reference issues (CWE-639) in the Weitong Mall application. The /queryTotal endpoint in the Product Statistics Handler fails to properly validate user authorization before returning product statistics data.

The vulnerability allows attackers to manipulate the isDelete parameter with a value of 1 to query data that should otherwise be restricted or deleted. This represents a classic authorization bypass scenario where the application trusts client-supplied input to determine data access permissions without performing proper server-side authorization checks.

The exploit has been publicly disclosed, increasing the risk of active exploitation against unpatched Weitong Mall installations. The network-based attack vector requires no user interaction or authentication, making it particularly dangerous for internet-facing deployments.

Root Cause

The root cause lies in insufficient authorization validation within the Product Statistics Handler. The application fails to verify whether the requesting user has appropriate permissions to access product data based on deletion status. Instead of enforcing server-side access controls, the endpoint directly uses the client-supplied isDelete parameter to filter query results, allowing attackers to access data outside their intended authorization scope.

Attack Vector

The attack can be initiated remotely over the network against the /queryTotal endpoint. An attacker sends a crafted HTTP request with the isDelete parameter set to 1, which bypasses the intended access control logic and returns product statistics that should be restricted. No authentication or user interaction is required, making this a straightforward attack to execute.

The vulnerability is exploited by simply including the manipulated parameter value in requests to the affected endpoint. For detailed technical information about the exploitation method, refer to the Cnblogs Security Post and the VulDB entry.

Detection Methods for CVE-2025-4119

Indicators of Compromise

• Unusual HTTP requests to /queryTotal endpoint containing isDelete=1 parameter from unexpected sources
• Increased access patterns to product statistics endpoints from unauthenticated sessions
• Anomalous queries retrieving deleted or archived product records
• Web server logs showing repeated parameter manipulation attempts against the Product Statistics Handler

Detection Strategies

• Implement web application firewall (WAF) rules to detect and block requests with suspicious isDelete parameter values
• Monitor application logs for unauthorized access attempts to the /queryTotal endpoint
• Deploy runtime application self-protection (RASP) solutions to detect improper access control exploitation

Monitoring Recommendations

• Enable detailed logging for all requests to the Product Statistics Handler component
• Set up alerts for access patterns indicative of parameter tampering on the /queryTotal endpoint
• Review access logs regularly for signs of data exfiltration through the affected endpoint

How to Mitigate CVE-2025-4119

Immediate Actions Required

• Restrict access to the /queryTotal endpoint to authenticated and authorized users only
• Implement server-side authorization checks that validate user permissions before returning any product statistics
• Consider temporarily disabling the affected endpoint until a proper fix can be applied
• Deploy WAF rules to filter malicious requests targeting the vulnerable parameter

Patch Information

No official vendor patch information is currently available. Organizations using Weitong Mall 1.0.0 should contact the vendor for remediation guidance. Monitor the VulDB entry for updates on available patches or fixes.

Workarounds

• Implement network-level access controls to restrict access to the affected endpoint from untrusted networks
• Add authentication requirements to the /queryTotal endpoint at the web server or reverse proxy level
• Use application-level middleware to enforce proper authorization checks before the request reaches the vulnerable handler
• Consider implementing input validation to restrict acceptable values for the isDelete parameter