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HIGH CWE-79

CVE-2026-7569

Quest NetVault Backup viewclient Cross-Site Scripting Authentication Bypass Vulnerability

Quest·NetVault Backup

8.8/ 10
CVSS 3.0
High severity
0.94%
EPSS exploit odds
Chance of exploitation in the next 30 days
Higher than 61% of all CVEs
Not listed
CISA KEV catalog
No confirmed in-the-wild exploitation on CISA's list.
Timeline
Published
Jun 24, 2026
Updated
Jun 25, 2026
First covered
Jun 30, 2026
Latest story
5 months ago

Summary

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.

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Attack profile

Attack vectorNetwork
ComplexityLow
PrivilegesNone
User interactionRequired
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected products

  • Quest NetVault Backup14.0.1.7

References

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