How severe is CVE-2019-12842?

CVE-2019-12842 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-2019-12842 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (52nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-12842?

CVE-2019-12842 affects Jetbrains Teamcity. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2019-12842?

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

When was CVE-2019-12842 published?

CVE-2019-12842 was published on 2019-07-03 and last updated on 2026-06-17.

CVE-2019-12842

CVE-2019-12842 is a medium-severity vulnerability in Jetbrains Teamcity 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% (52nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Jetbrains Teamcity
Published: 2019-07-03
Last modified: 2026-06-17

Description

A reflected XSS on a user page was detected on one of the JetBrains TeamCity pages. The issue was fixed in TeamCity 2018.2.2.

Frequently asked questions

What is CVE-2019-12842?: A reflected XSS on a user page was detected on one of the JetBrains TeamCity pages. The issue was fixed in TeamCity 2018.2.2.
How severe is CVE-2019-12842?: CVE-2019-12842 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-2019-12842 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (52nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-12842?: CVE-2019-12842 affects Jetbrains Teamcity. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2019-12842?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2019-12842 published?: CVE-2019-12842 was published on 2019-07-03 and last updated on 2026-06-17.

References

https://blog.jetbrains.com/blog/2019/06/19/jetbrains-security-bulletin-q1-2019/

Affected products (1)

cpe:2.3:a:jetbrains:teamcity:*:*:*:*:*:*:*:*

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