CVE-2025-4118: Weitong Mall Auth Bypass Vulnerability

CVE-2025-4118 Overview

A critical improper access controls vulnerability has been discovered in Weitong Mall version 1.0.0. The vulnerability exists in the Product History Handler component, specifically in the /historyList endpoint. By manipulating the isDelete parameter with a value of 1, an attacker can bypass access controls and perform unauthorized actions. This vulnerability can be exploited remotely over the network without requiring authentication, making it a significant security concern for organizations running affected versions of this e-commerce platform.

Critical Impact

Unauthorized remote access to product history data through improper access control bypass in the /historyList endpoint, potentially exposing sensitive business information.

Affected Products

• Weitong Mall 1.0.0

Discovery Timeline

• 2025-04-30 - CVE-2025-4118 published to NVD
• 2025-05-16 - Last updated in NVD database

Technical Details for CVE-2025-4118

Vulnerability Analysis

This vulnerability is classified under CWE-266 (Incorrect Privilege Assignment), indicating a fundamental flaw in how the application manages user privileges and access rights. The Product History Handler fails to properly validate user authorization before processing requests to the /historyList endpoint. When an attacker submits a crafted request with the isDelete parameter set to 1, the application does not verify whether the requesting user has the appropriate permissions to perform deletion operations on product history records.

The attack can be initiated remotely over the network, requiring no prior authentication or user interaction. This makes the vulnerability particularly dangerous as it can be exploited by any remote attacker with network access to the vulnerable application. The exploit has been publicly disclosed, increasing the risk of exploitation in the wild.

Root Cause

The root cause of this vulnerability lies in inadequate access control implementation within the Product History Handler component. The application fails to enforce proper authorization checks before processing sensitive operations triggered by the isDelete parameter. Instead of validating user roles and permissions against a defined access control policy, the application directly processes the parameter value, allowing unauthorized users to manipulate product history records.

Attack Vector

The attack vector is network-based, allowing remote exploitation without authentication. An attacker can target the /historyList endpoint by sending a crafted HTTP request with the isDelete parameter set to 1. The manipulation bypasses access control mechanisms, potentially allowing unauthorized deletion or modification of product history data.

The attack flow involves:

1. Identifying a vulnerable Weitong Mall instance running version 1.0.0
2. Crafting an HTTP request to the /historyList endpoint
3. Including the isDelete=1 parameter in the request
4. Submitting the request to bypass access controls and perform unauthorized actions

Technical details regarding the specific exploitation method can be found in the CNBlogs Security Post and the VulDB entry.

Detection Methods for CVE-2025-4118

Indicators of Compromise

• Unusual HTTP requests to the /historyList endpoint with isDelete parameter manipulation
• Unexpected modifications or deletions in product history records
• Access logs showing requests to /historyList from unauthorized sources or unusual IP addresses
• Anomalous spikes in requests targeting the Product History Handler component

Detection Strategies

• Implement web application firewall (WAF) rules to detect and block requests with suspicious isDelete parameter values targeting /historyList
• Deploy intrusion detection systems (IDS) with signatures for improper access control exploitation patterns
• Enable detailed application logging for the Product History Handler to capture all parameter manipulations
• Monitor for unauthorized access attempts using SIEM correlation rules

Monitoring Recommendations

• Configure alerts for any unauthenticated access attempts to administrative endpoints including /historyList
• Implement real-time log analysis to detect parameter tampering in HTTP requests
• Set up baseline monitoring for product history changes to identify unauthorized modifications
• Review access logs regularly for anomalous patterns targeting the affected component

How to Mitigate CVE-2025-4118

Immediate Actions Required

• Restrict network access to the /historyList endpoint to trusted IP addresses only
• Implement additional authentication requirements for the Product History Handler component
• Review and audit all product history records for unauthorized modifications
• Consider temporarily disabling the affected functionality until a patch is available

Patch Information

At the time of publication, no official patch has been released by Weitong for this vulnerability. Organizations should monitor the vendor's official channels for security updates. Additional technical information is available through VulDB CTI ID #306603 and VulDB Submission #560777.

Workarounds

• Implement server-side access control validation for all requests to /historyList that include the isDelete parameter
• Deploy a web application firewall to filter and block malicious requests targeting the vulnerable endpoint
• Restrict access to the affected component using network segmentation or IP whitelisting
• Add custom middleware to validate user authorization before processing delete operations

# Example: Restrict access to /historyList using nginx
location /historyList {
    # Allow only trusted internal networks
    allow 10.0.0.0/8;
    allow 192.168.0.0/16;
    deny all;
    
    # Additional rate limiting
    limit_req zone=historylist burst=5 nodelay;
}