CVE-2026-41122 in PowerProtect Data Domain
Summary
by MITRE • 07/08/2026
Dell PowerProtect Data Domain, versions 7.7.1.0 through 8.7, LTS2026 release version 8.6.1.0 through 8.6.1.10, LTS2025 release version 8.3.1.0 through 8.3.1.30, LTS2024 release versions 7.13.1.0 through 7.13.1.70 contain a stored cross-site scripting vulnerability. An unauthenticated attacker with remote access could potentially exploit this vulnerability. Exploitation may lead to information disclosure, session theft, or client-side request forgery.
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Analysis
by VulDB Data Team • 07/08/2026
The Dell PowerProtect Data Domain systems present a critical stored cross-site scripting vulnerability that affects multiple release versions across different support lifecycles. This security flaw exists within the web-based management interface of these data protection appliances, creating a significant attack surface for unauthenticated remote adversaries who possess network access to the affected systems. The vulnerability stems from insufficient input validation and output encoding mechanisms within the web application layer, allowing malicious actors to inject persistent malicious scripts into the system's user interface components.
The technical implementation of this stored XSS flaw enables attackers to execute arbitrary JavaScript code within the context of a victim's browser session when legitimate users interact with affected pages. This vulnerability specifically manifests in scenarios where user-supplied input is not properly sanitized before being rendered back to users through web responses. The flaw resides in the web application's handling of parameters and data inputs that are subsequently displayed without adequate security filtering, creating persistent script injection points within the system's administrative interface.
The operational impact of this vulnerability extends beyond simple client-side exploitation to encompass serious security implications including unauthorized information disclosure, session hijacking, and potential client-side request forgery attacks. An attacker who successfully exploits this vulnerability could gain access to sensitive administrative credentials, extract session tokens, or manipulate user sessions to perform unauthorized operations within the Data Domain management interface. The long-term exposure of these systems through multiple LTS releases indicates a persistent architectural weakness that has not been adequately addressed across the product lifecycle.
Organizations utilizing affected Dell PowerProtect Data Domain versions face substantial risk from this vulnerability, particularly in environments where these appliances are exposed to untrusted networks or where administrative access is not properly segmented from general network traffic. The stored nature of this XSS vulnerability means that malicious scripts can persist within the system and affect multiple users over time, making it particularly dangerous for administrators who regularly interact with the web interface. This vulnerability aligns with CWE-79 which specifically addresses cross-site scripting flaws in web applications.
Mitigation strategies should prioritize immediate patch deployment to address the identified XSS vulnerability across all affected release versions. Organizations must implement network segmentation to limit access to these management interfaces and ensure that administrative functions are not exposed to untrusted networks. Additionally, implementing proper input validation controls and output encoding mechanisms within the web application layer can provide defense-in-depth protection against similar vulnerabilities. Security monitoring should include detection of suspicious web traffic patterns that may indicate exploitation attempts, while regular security assessments should verify proper implementation of secure coding practices throughout the system's interface components.
This vulnerability demonstrates the importance of maintaining robust web application security controls and proper input sanitization across all system components. The presence of this flaw across multiple LTS releases suggests that organizations should conduct comprehensive security audits of their data protection infrastructure to identify similar vulnerabilities in other critical systems. The ATT&CK framework categorizes this type of vulnerability under web application exploitation techniques, specifically focusing on client-side attacks that leverage user trust relationships within administrative interfaces.