CVE-2026-91915 in OpenManage Enterprise
Summary
by MITRE • 10/30/2026
Dell OpenManage Enterprise, versions prior to 4.8.0, contains an Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection') vulnerability. A high privileged attacker with adjacent network access could potentially exploit this vulnerability, leading to Script injection.
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Analysis
by VulDB Data Team • 10/30/2026
The identified security flaw resides within Dell OpenManage Enterprise software versions preceding the 4.8.0 release and is classified under Common Weakness Enumeration identifier CWE-79, which denotes Improper Neutralization of Input During Web Page Generation commonly known as Cross-site Scripting or XSS. This vulnerability specifically manifests as an injection weakness where special elements in user-controllable input are not adequately sanitized before being processed by downstream components responsible for rendering output. The core technical deficiency lies in the application's failure to properly escape or validate specific characters and sequences that hold semantic meaning within script execution contexts, allowing malicious payloads to be embedded directly into the data stream intended for client-side interpretation.
From an operational perspective, this vulnerability requires a high-privileged attacker who possesses adjacent network access to successfully execute exploitation attempts. The requirement for elevated privileges suggests that the attack vector likely targets administrative interfaces or internal management APIs rather than public-facing endpoints, thereby limiting the initial attack surface but increasing the potential severity of successful exploits. An adversary leveraging this flaw could inject arbitrary client-side scripts into web pages viewed by other users, including system administrators and operators who interact with the Dell OpenManage Enterprise console. This capability enables a range of malicious activities such as session hijacking through theft of authentication cookies or tokens, credential harvesting via phishing-like forms injected into legitimate interfaces, defacement of management dashboards, or redirection to external malicious sites designed to compromise additional systems within the enterprise network.
The exploitation mechanism typically involves crafting HTTP requests that contain specially formatted payloads targeting input fields, query parameters, or API endpoints where user data is reflected in HTML responses without proper encoding. When a privileged administrator accesses these manipulated pages, their browser executes the injected script with the same privileges and context as legitimate administrative functions. This can lead to unauthorized actions being performed on behalf of the victim, such as modifying system configurations, disabling security controls, or exfiltrating sensitive inventory data stored within the management platform. The adjacent network access requirement implies that lateral movement from a compromised host is necessary to reach the vulnerable service, which may involve exploiting other vulnerabilities in the local subnet to gain proximity to the Dell OpenManage Enterprise server.
Mitigation strategies primarily focus on applying vendor-provided patches and updates immediately upon availability. Upgrading Dell OpenManage Enterprise to version 4.8.0 or later resolves this issue by implementing robust input validation and output encoding mechanisms that neutralize special characters before they reach downstream rendering components. In environments where immediate patching is not feasible, network segmentation should be enforced to restrict access to the management interface exclusively from trusted administrative workstations using secure protocols such as HTTPS with strong certificate verification. Additionally, deploying Web Application Firewalls can provide an additional layer of defense by detecting and blocking common injection patterns associated with script-based attacks. Security teams should also implement strict Content Security Policy headers where applicable to limit the execution context of scripts and reduce the impact if a bypass occurs. Regular security audits and penetration testing focused on input validation weaknesses are recommended to identify similar flaws across other enterprise management tools within the infrastructure.