How severe is CVE-2017-16884?

CVE-2017-16884 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-2017-16884 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (90th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2017-16884?

CVE-2017-16884 affects Mistserver. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2017-16884?

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

When was CVE-2017-16884 published?

CVE-2017-16884 was published on 2017-12-07 and last updated on 2026-06-17.

CVE-2017-16884

CVE-2017-16884 is a medium-severity vulnerability in Mistserver 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: 4% (90th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Mistserver
Published: 2017-12-07
Last modified: 2026-06-17

Description

Cross-site scripting (XSS) vulnerability in MistServer before 2.13 allows remote attackers to inject arbitrary web script or HTML via vectors related to failed authentication requests alerts.

Frequently asked questions

What is CVE-2017-16884?: Cross-site scripting (XSS) vulnerability in MistServer before 2.13 allows remote attackers to inject arbitrary web script or HTML via vectors related to failed authentication requests alerts.
How severe is CVE-2017-16884?: CVE-2017-16884 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-2017-16884 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (90th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2017-16884?: CVE-2017-16884 affects Mistserver. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2017-16884?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2017-16884 published?: CVE-2017-16884 was published on 2017-12-07 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:mistserver:mistserver:*:*:*:*:*:*:*:*

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