CVE-2026-7569: Quest NetVault Backup viewclient Cross-Site Scripting Authentication Bypass Vulnerability
Quest NetVault Backup viewclient Cross-Site Scripting Authentication Bypass Vulnerability. This vulnerability allows remote attackers to bypass authentication on affected installations of Quest NetVault Backup. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.
The specific flaw exists within the viewclient webpage. The issue results from the lack of proper validation of user-supplied data, which can lead to the injection of an arbitrary script. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary code in the context of SYSTEM. Was ZDI-CAN-28202.
Affected Software
Event History
Frequently Asked Questions
What is CVE-2026-7569?
CVE-2026-7569 is a high severity Cross-Site Scripting (XSS) vulnerability in Quest NetVault Backup viewclient that allows remote attackers to bypass authentication.
What is the severity of CVE-2026-7569?
The severity of CVE-2026-7569 is rated as high with a CVSS score of 8.8.
How do I fix CVE-2026-7569?
To fix CVE-2026-7569, ensure that you update your Quest NetVault Backup viewclient to the latest version provided by Quest.
What systems are affected by CVE-2026-7569?
CVE-2026-7569 affects installations of Quest NetVault Backup viewclient.
Is user interaction required to exploit CVE-2026-7569?
Yes, user interaction is required as the target must visit a malicious link to exploit CVE-2026-7569.