CVE-2021-28807 Details
Description
A post-authentication reflected XSS vulnerability has been reported to affect QNAP NAS running Q’center. If exploited, this vulnerability allows remote attackers to inject malicious code. QNAP have already fixed this vulnerability in the following versions of Q’center: QTS 4.5.3: Q’center v1.12.1012 and later QTS 4.3.6: Q’center v1.10.1004 and later QTS 4.3.3: Q’center v1.10.1004 and later QuTS hero h4.5.2: Q’center v1.12.1012 and later QuTScloud c4.5.4: Q’center v1.12.1012 and later
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
No SSVC data is available for this CVE.
References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://www.qnap.com/zh-tw/security-advisory/qsa-21-20 | CVE | Vendor Advisory |
| https://www.shielder.it/advisories/qnap-qcenter-post-auth-remote-code-execution-via-qpkg/ | CVE | ExploitThird Party Advisory |
| https://www.shielder.it/advisories/qnap-qcenter-virtual-stored-xss/ | CVE | ExploitThird Party Advisory |
| https://www.qnap.com/zh-tw/security-advisory/qsa-21-20 | [email protected] | Vendor Advisory |
| https://www.shielder.it/advisories/qnap-qcenter-post-auth-remote-code-execution-via-qpkg/ | [email protected] | ExploitThird Party Advisory |
| https://www.shielder.it/advisories/qnap-qcenter-virtual-stored-xss/ | [email protected] | ExploitThird Party Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-79 | Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| qnap q'center | < 1.12.1012 < 1.10.1004 |
CPE
Remediation
| |
| qnap qts | 4.5.3 4.3.3 4.3.6 |
CPE
Remediation
| |
| qnap quts hero | h4.5.2 |
CPE
Remediation
| |
| qnap qutscloud | c4.5.4 |
CPE
Remediation
| |
Change History
6 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Nov 21, 2024 | CVE Modified | CVE |
| May 14, 2024 | CVE Modified | [email protected] |
| Sep 14, 2021 | Modified Analysis | [email protected] |
| Jul 16, 2021 | CVE Modified | [email protected] |
| Jun 11, 2021 | Initial Analysis | [email protected] |