Cross-Site Scripting Vulnerability in Dell PowerProtect Data Domain
CVE-2026-28263

5.9MEDIUM

Key Information:

Vendor

Dell
Status
Powerprotect Data Domain
Vendor
CVE Published:
17 April 2026

What is CVE-2026-28263?

The Dell PowerProtect Data Domain systems, specifically those running the Data Domain Operating System in various feature and LTS release versions, are susceptible to a cross-site scripting (XSS) vulnerability. This flaw allows high-privileged attackers with remote access to inject malicious scripts into web pages viewed by users. Exploitation of this vulnerability could compromise sensitive information and lead to unauthorized actions, underscoring the importance of prompt mitigation and patching strategies.

Affected Version(s)

PowerProtect Data Domain 0 < 8.6.0.0 or later

PowerProtect Data Domain 0 < 8.3.1.20 or later

PowerProtect Data Domain 0 < 7.13.1.50 or later

References

https://www.dell.com/support/kbdoc/en-us/000450699/dsa-20...
vendor-advisory

CVSS V3.1

Score:
5.9
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
High
User Interaction:
Required
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.