How severe is CVE-2017-7631?

CVE-2017-7631 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2017-7631 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (51st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2017-7631?

CVE-2017-7631 primarily affects Qnap Qts. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2017-7631?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2017-7631 published?

CVE-2017-7631 was published on 2018-03-27 and last updated on 2026-06-17.

CVE-2017-7631

CVE-2017-7631 is a medium-severity vulnerability in Qnap Qts with a CVSS 3.x base score of 6.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-79.

Key facts

Severity: Medium (CVSS 3.x base score 6.1)
CVSS v2: 4.3
EPSS exploit prediction: 1% (51st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Qnap Qts
Published: 2018-03-27
Last modified: 2026-06-17

Description

Cross-site scripting (XSS) vulnerability in the share link function of File Station of QNAP 4.2.6 build 20171026, QTS 4.3.3 build 20170727 and earlier allows remote attackers to inject arbitrary web script or HTML.

Frequently asked questions

What is CVE-2017-7631?: Cross-site scripting (XSS) vulnerability in the share link function of File Station of QNAP 4.2.6 build 20171026, QTS 4.3.3 build 20170727 and earlier allows remote attackers to inject arbitrary web script or HTML.
How severe is CVE-2017-7631?: CVE-2017-7631 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2017-7631 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (51st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2017-7631?: CVE-2017-7631 primarily affects Qnap Qts. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2017-7631?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2017-7631 published?: CVE-2017-7631 was published on 2018-03-27 and last updated on 2026-06-17.

References

https://www.qnap.com/zh-tw/security-advisory/nas-201803-23

Affected products (2)

cpe:2.3:o:qnap:qts:4.2.6:*:*:*:*:*:*:*
cpe:2.3:o:qnap:qts:4.3.3:*:*:*:*:*:*:*

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