How severe is CVE-2018-0719?

CVE-2018-0719 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability low.

Is CVE-2018-0719 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-2018-0719?

CVE-2018-0719 primarily affects Qnap Qts. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2018-0719?

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

When was CVE-2018-0719 published?

CVE-2018-0719 was published on 2018-11-27 and last updated on 2026-06-17.

CVE-2018-0719

CVE-2018-0719 is a medium-severity vulnerability in Qnap Qts with a CVSS 3.x base score of 5.5. 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 5.5)
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: 2018-11-27
Last modified: 2026-06-17

Description

Cross-site Scripting (XSS) vulnerability in NAS devices of QNAP Systems Inc. QTS allows attackers to inject javascript. This issue affects: QNAP Systems Inc. QTS version 4.2.6 and prior versions on build 20180711; version 4.3.3 and prior versions on build 20180725; version 4.3.4 and prior versions on build 20180710.

Frequently asked questions

What is CVE-2018-0719?: Cross-site Scripting (XSS) vulnerability in NAS devices of QNAP Systems Inc. QTS allows attackers to inject javascript. This issue affects: QNAP Systems Inc. QTS version 4.2.6 and prior versions on build 20180711; version 4.3.3 and prior versions on build 20180725; version 4.3.4 and prior versions on build 20180710.
How severe is CVE-2018-0719?: CVE-2018-0719 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability low.
Is CVE-2018-0719 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-2018-0719?: CVE-2018-0719 primarily affects Qnap Qts. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2018-0719?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2018-0719 published?: CVE-2018-0719 was published on 2018-11-27 and last updated on 2026-06-17.

References

https://www.qnap.com/zh-tw/security-advisory/nas-201809-20

Affected products (3)

cpe:2.3:o:qnap:qts:4.2.6:*:*:*:*:*:*:*
cpe:2.3:o:qnap:qts:4.3.3:*:*:*:*:*:*:*
cpe:2.3:o:qnap:qts:4.3.4:*:*:*:*:*:*:*

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