What is CVE-2019-18365?

CVE-2019-18365 is a medium-severity vulnerability in Jetbrains Teamcity, classified under Improper Privilege Management. CVSS score: 4.3/10. Published 2019-10-31.

How severe is CVE-2019-18365?

Medium severity. CVSS v3 base score is 4.3 out of 10.

Privilege escalation in Jetbrains Teamcity

CVE-2019-18365

In JetBrains TeamCity before 2019.1.4, reverse tabnabbing was possible on several pages.

Vulnerability class: Privilege Escalation

Published 2019-10-31 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N.

EPSS exploit prediction

EPSS: 0.008 (55.9th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 56th percentile — 55.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: 0.000

Affected products

Jetbrains Teamcity

Weakness classification (CWE)

CWE-269 — Improper Privilege Management

References

blog.jetbrains.com/blog/2019/10/29/jetbrains-security-bulletin-q3-2019/ (Vendor Advisory)

Frequently asked questions

What is CVE-2019-18365?: CVE-2019-18365 is a medium-severity vulnerability in Jetbrains Teamcity, classified under Improper Privilege Management. CVSS score: 4.3/10. Published 2019-10-31.
How severe is CVE-2019-18365?: Medium severity. CVSS v3 base score is 4.3 out of 10.