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Medium severity5.7NVD Advisory· Published Jun 3, 2021· Updated Jun 17, 2026

CVE-2021-28806

CVE-2021-28806

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.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

9
  • QNAP Systems Inc./QTSv5
    Range: unspecified
  • QNAP Systems Inc./QuTS herov5
    Range: unspecified
  • QNAP Systems Inc./QuTScloudv5
    Range: unspecified
  • Qnap/Qts
    cpe:2.3:o:qnap:qts:*:*:*:*:*:*:*:*
    Range: <4.5.3.1652
  • Qnap/Quts Hero
    cpe:2.3:o:qnap:quts_hero:*:*:*:*:*:*:*:*
    Range: <h4.5.2.1638
  • Qnap/QuTScloud
    cpe:2.3:o:qnap:qutscloud:*:*:*:*:*:*:*:*
    Range: <c4.5.5.1656
  • QNAP Systems Inc./QTSllm-create
    Range: <4.5.3.1652 Build 20210428
  • QNAP Systems Inc./QuTScloudllm-create
    Range: <c4.5.5.1656 Build 20210503
  • QNAP Systems Inc./QuTS herollm-create
    Range: <h4.5.2.1638 Build 20210414

Patches

Vulnerability mechanics

References

1

News mentions

0

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