CVE-2021-28806mediumCWE-79

CVE-2021-28806: medium-severity vulnerability in QNAP Systems Inc. QTS

DOM-Based XSS Vulnerability in QTS and QuTS hero

Published · Updated

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13Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 5.7epss 0.5%
A DOM-based XSS vulnerability has been reported to affect QNAP NAS running QTS and QuTS hero. If exploited, this vulnerability allows attackers to inject malicious code. This issue affects: QNAP Systems Inc. QTS versions prior to 4.5.3.1652 Build 20210428. QNAP Systems Inc. QuTS hero versions prior to h4.5.2.1638 Build 20210414. QNAP Systems Inc. QuTScloud versions prior to c4.5.5.1656 Build 20210503. This issue does not affect: QNAP Systems Inc. QTS 4.3.6; 4.3.3.
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N
Affected products
QNAP Systems Inc. · QTSQNAP Systems Inc. · QuTScloudQNAP Systems Inc. · QuTS hero
Related CVEs — QNAP Systems Inc. QTS

In the same product, most dangerous first.

CVE-2020-2509CRITICALCommand Injection Vulnerability in QTS and QuTS heroEPSS 34.0%KEVCVE-2018-19953MEDIUMCVE-2018-19953EPSS 30.5%KEVCVE-2018-19949CRITICALCVE-2018-19949EPSS 30.2%KEVCVE-2018-19943HIGHCVE-2018-19943EPSS 22.7%KEVCVE-2023-47218MEDIUMQTS, QuTS hero, QuTScloudEPSS 89.9%CVE-2023-51364HIGHQTS, QuTS hero, QuTScloudEPSS 39.7%