CVE-2026-79946 in Secure Connect Gateway
Summary
by MITRE • 09/09/2026
Dell SCG 5.0 Appliance versions prior to 5.36.00.16 and Dell SCG 5.0 Application versions prior to 5.36.00.00, contains an Improper Neutralization of Alternate XSS Syntax vulnerability. An unauthenticated attacker with remote access could potentially exploit this vulnerability, leading to script injection.
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Analysis
by VulDB Data Team • 09/09/2026
The identified security flaw represents a classic Cross-Site Scripting (XSS) vulnerability within the Dell Storage Center Gateway appliance and application software, specifically affecting versions prior to 5.36.00.16 for the Appliance and prior to 5.36.00.00 for the Application component. This issue is categorized under CWE-79, which denotes Improper Neutralization of Input During Web Page Generation, commonly known as Cross-site Scripting. The core technical deficiency lies in the application's failure to adequately sanitize or validate user-supplied input before it is processed and rendered by the web interface. Specifically, the vulnerability stems from an improper neutralization of alternate XSS syntaxes, meaning that while standard script tags might be filtered, attackers can utilize alternative encoding methods, obfuscation techniques, or non-standard HTML attributes to bypass existing security controls. This allows malicious JavaScript code to be injected into the application's response stream without triggering immediate detection mechanisms designed for simpler injection patterns.
From an operational perspective, this vulnerability is particularly severe because it permits exploitation by unauthenticated attackers who possess remote network access to the target system. Unlike many web vulnerabilities that require a valid user session or administrative privileges, this flaw allows any external actor with connectivity to the Dell SCG management interface to initiate an attack vector. When a victim, such as a storage administrator, interacts with the compromised page, the injected script executes within their browser context under the same security permissions and domain origin as the legitimate application. This environment enables the malicious code to access sensitive cookies, session tokens, and other authentication credentials stored by the web browser. The attacker can then hijack these sessions to impersonate the administrator, gaining unauthorized control over the storage infrastructure without needing valid login credentials initially.
The impact of this exploitation extends beyond simple data theft or defacement. In the context of enterprise storage solutions like Dell SCG, an authenticated session obtained through XSS can be leveraged to perform critical administrative actions. An attacker could potentially reconfigure storage pools, modify access control lists, initiate unauthorized snapshots, or even disrupt service availability by altering system settings. This aligns with several tactics in the MITRE ATT&CK framework, particularly T1059 Command and Scripting Interpretation for executing arbitrary code via JavaScript, and T1078 Valid Accounts if session hijacking is used to maintain persistent access. The ability to execute scripts remotely without authentication significantly lowers the barrier to entry for attackers, increasing the likelihood of successful compromise in environments where network segmentation or firewall rules do not completely isolate the management interface from untrusted networks.
To mitigate this risk and secure the environment against such injection attacks, immediate patching is required. Administrators must upgrade the Dell SCG Appliance to version 5.36.00.16 or later and ensure the Application component is updated to version 5.36.00.00 or higher, as these versions contain the necessary input validation fixes that properly neutralize alternate XSS syntaxes alongside standard ones. In addition to software updates, organizations should implement robust network segmentation strategies to restrict access to the management interface exclusively from trusted administrative subnets using firewalls and VLANs. This reduces the attack surface by ensuring that unauthenticated remote actors cannot reach the vulnerable endpoints at all. Furthermore, deploying a Web Application Firewall can provide an additional layer of defense by inspecting incoming HTTP traffic for known XSS patterns and blocking malicious payloads before they interact with the application logic. Regular security audits and penetration testing focused on input validation weaknesses are also recommended to identify similar vulnerabilities in other components of the infrastructure.