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TI-2021-09795 Aliases CVE-2021-28803GHSA-5g7h-5qvh-cr9r

Stored XSS Vulnerability in Q'center

Priority LOW 25CWE-80Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
Required
Attack complexity
Low
Impact type
Cross-site scripting
Confidentiality · integrity · availability
Low · Low · None
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-80.

Summary

This issue affects: QNAP Systems Inc. Q'center versions prior to 1.11.1004.

Why it matters now

EPSS 0.00466 40th percentileScored 2026-11-07
Fix Fixed Q'center (QNAP Systems Inc.): 1.11.1004

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
QNAPQ'centerbefore 1.11.10041.11.1004Patch availableCNA
  • Q'center VendorQNAP Affected before 1.11.1004 Fixed in 1.11.1004 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:qnap:q\'center:*:*:*:*:*:*:*:*before 1.11.1004VulnerableQNAP
  • cpe:2.3:a:qnap:q\'center:*:*:*:*:*:*:*:* Versions before 1.11.1004 Vulnerable ·QNAP

Remediation

  • Fix · CNA Q'center (QNAP Systems Inc.) Fixed in 1.11.1004

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-28803
  2. 2026-10-03 Alias added: GHSA-5g7h-5qvh-cr9r

References

Advisory 1

  • TI-2018-00661 Exposure of Private Information in QNAP Q'center Virtual Appliance version 1.7.1063 and… CVSS 3.0HIGH 8.8
  • TI-2018-00662 OS command injection in QNAP Q'center Virtual Appliance CVSS 3.0HIGH 7.2
  • TI-2018-00663 OS command injection in QNAP Q'center Virtual Appliance CVSS 3.0HIGH 8.8
  • TI-2018-00665 OS command injection in QNAP Q'center Virtual Appliance CVSS 3.0HIGH 8.8
  • TI-2018-00664 OS command injection in QNAP Q'center Virtual Appliance CVSS 3.0HIGH 8.8
  • TI-2021-09799 Post-Authentication Reflected XSS Vulnerability in Q'center CVSS 3.1HIGH 7.7

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences