CVE-2026-9780 (GCVE-0-2026-9780)

Vulnerability from cvelistv5 – Published: 2026-06-24 23:13 – Updated: 2026-06-25 12:48
VLAI
Title
Quest NetVault Backup addclient3 Cross-Site Scripting Authentication Bypass Vulnerability
Summary
Quest NetVault Backup addclient3 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 addclient3 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-27666.
Severity
8.8 (High)
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-25 12:47 UTC
CWE
  • CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Assigner
zdi CNA under the mitre root
CNA scorecard C 73/100 over 139 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Quest NetVault Backup Affected: 14.0.1.7
guessed Create a notification for this product.
Date Public
2026-06-24 20:23
Show details on NVD website
To clipboard 

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