CVE-2026-108065 in WebAlliance eCommerce
Summary
by MITRE • 10/14/2026
SQL Injection (CWE-89) in the SOAP GetUser method of the /preapproval.asmx endpoint in Channel Software WebAlliance eCommerce [VERSION — missing] allows an unauthenticated remote attacker to read, write, and potentially execute commands on the backend Microsoft SQL Server via a crafted sUserID parameter value containing a single quote and stacked SQL query.
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Analysis
by VulDB Data Team • 10/14/2026
The vulnerability identified as CWE-89 represents a critical SQL Injection flaw within the SOAP GetUser method of the /preapproval.asmx endpoint in Channel Software WebAlliance eCommerce systems. This specific implementation error allows an unauthenticated remote attacker to interact directly with the backend Microsoft SQL Server database without requiring valid credentials or prior authentication. The root cause lies in the improper handling of user-supplied input, specifically within the sUserID parameter passed during SOAP requests. Because the application fails to adequately sanitize or validate this input before incorporating it into dynamic SQL queries, an attacker can inject malicious SQL code that alters the intended logic of the database operation. This lack of input validation is a fundamental security design flaw that exposes sensitive backend infrastructure to direct exploitation from any network location where the endpoint is accessible.
The operational impact of this vulnerability is severe due to its unauthenticated nature and the high privileges typically associated with web application database accounts. By crafting a specific sUserID parameter containing a single quote followed by stacked SQL queries, an attacker can bypass standard authentication mechanisms entirely. Stacked queries allow multiple distinct SQL statements to be executed sequentially within a single request, enabling actions beyond simple data retrieval. This capability permits the reading of sensitive information such as customer records, financial transactions, and administrative credentials stored in the database. Furthermore, depending on the configuration of the Microsoft SQL Server instance, particularly if it has extended stored procedures enabled or specific permissions granted to the web application account, an attacker may escalate their access to execute operating system commands. This could lead to full server compromise, allowing the installation of malware, creation of backdoors, and lateral movement within the internal network infrastructure.
From a threat intelligence perspective, this vulnerability aligns with MITRE ATT&CK techniques related to SQL Injection for data exfiltration and potential command execution via database features such as xp_cmdshell or OLE automation procedures. The attack vector is classified as remote across the network because it requires no prior access or user interaction beyond sending HTTP/SOAP requests, making it highly exploitable by automated scanning tools and script-kiddies alike. The absence of authentication requirements significantly lowers the barrier to entry for attackers, increasing the likelihood of successful exploitation in unpatched environments. Organizations relying on this version of WebAlliance eCommerce are at immediate risk of data breaches and system compromise if the endpoint remains exposed without proper mitigation controls or updates from Channel Software.
To mitigate this vulnerability, immediate remediation should focus on patching to a secure version of Channel Software WebAlliance eCommerce that addresses the input validation flaws in the GetUser method. In cases where upgrading is not immediately feasible, network-level defenses such as Web Application Firewalls (WAF) can be configured with rulesets specifically designed to detect and block SQL injection patterns, including stacked queries and unusual character sequences like single quotes followed by semicolons or keywords within SOAP parameters. Additionally, implementing strict input validation on the application side is essential; developers must use parameterized queries or prepared statements instead of string concatenation when building SQL commands. This ensures that user input is treated strictly as data rather than executable code. Furthermore, applying the principle of least privilege to the database account used by the web application can limit the damage if an injection occurs by restricting permissions such as disabling xp_cmdshell and preventing direct OS-level command execution from within the database engine. Regular security audits and penetration testing should be conducted to identify similar input validation weaknesses across other endpoints in the system.