CVE-2021-28806

MEDIUM

QNAP QTS < 4.5.3.1652 and QuTS hero < h4.5.2.1638 and QuTScloud < c4.5.5.1656 - DOM-based Cross-Site Scripting

Title source: llm
STIX 2.1

Description

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.

References (1)

Core 1
Core References

Scores

CVSS v3 5.7
EPSS 0.0025
EPSS Percentile 47.9%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N

Details

CWE
CWE-79
Status published
Products (3)
qnap/qts < 4.5.3.1652
qnap/quts_hero < h4.5.2.1638
qnap/qutscloud < c4.5.5.1656
Published Jun 03, 2021
Tracked Since Feb 18, 2026