How severe is CVE-2018-0711?

CVE-2018-0711 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-2018-0711 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (55th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-0711?

CVE-2018-0711 primarily affects Qnap Qts. In total, 12 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2018-0711?

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

When was CVE-2018-0711 published?

CVE-2018-0711 was published on 2018-04-30 and last updated on 2026-06-17.

CVE-2018-0711

CVE-2018-0711 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% (55th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Qnap Qts
Published: 2018-04-30
Last modified: 2026-06-17

Description

Cross-site scripting (XSS) vulnerability in QNAP QTS 4.3.3 build 20180126, QTS 4.3.4 build 20180315, and their earlier versions could allow remote attackers to inject arbitrary web script or HTML.

Frequently asked questions

What is CVE-2018-0711?: Cross-site scripting (XSS) vulnerability in QNAP QTS 4.3.3 build 20180126, QTS 4.3.4 build 20180315, and their earlier versions could allow remote attackers to inject arbitrary web script or HTML.
How severe is CVE-2018-0711?: CVE-2018-0711 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-2018-0711 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (55th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-0711?: CVE-2018-0711 primarily affects Qnap Qts. In total, 12 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2018-0711?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2018-0711 published?: CVE-2018-0711 was published on 2018-04-30 and last updated on 2026-06-17.

References

Affected products (12)

cpe:2.3:o:qnap:qts:4.3.3.0514:*:*:*:*:*:*:*
cpe:2.3:o:qnap:qts:4.3.3.0546:*:*:*:*:*:*:*
cpe:2.3:o:qnap:qts:4.3.3.0570:*:*:*:*:*:*:*
cpe:2.3:o:qnap:qts:4.3.4.0516:*:*:*:*:*:*:*
cpe:2.3:o:qnap:qts:4.3.4.0526:*:*:*:*:*:*:*
cpe:2.3:o:qnap:qts:4.3.4.0551:*:*:*:*:*:*:*
cpe:2.3:o:qnap:qts:4.3.4.0557:*:*:*:*:*:*:*
cpe:2.3:o:qnap:qts:4.3.4.0561:*:*:*:*:*:*:*
cpe:2.3:o:qnap:qts:4.3.4.0569:*:*:*:*:*:*:*
cpe:2.3:o:qnap:qts:4.3.4.0593:*:*:*:*:*:*:*
cpe:2.3:o:qnap:qts:4.3.4.0597:*:*:*:*:*:*:*
cpe:2.3:o:qnap:qts:4.3.4.0604:*:*:*:*:*:*:*

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