What is CVE-2025-68166?

CVE-2025-68166 is a medium-severity vulnerability in Jetbrains Teamcity, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2025-12-16.

How severe is CVE-2025-68166?

Medium severity. CVSS v3 base score is 5.4 out of 10.

XSS in Jetbrains Teamcity

CVE-2025-68166

In JetBrains TeamCity before 2025.11 a DOM-based XSS was possible on the OAuth connections tab

Vulnerability class: XSS (Cross-Site Scripting)

Published 2025-12-16 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.002 (8.6th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 9th percentile — 8.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: +0.000

Affected products

Jetbrains Teamcity — versions 0

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

www.jetbrains.com/privacy-security/issues-fixed/ (Vendor Advisory)

Frequently asked questions

What is CVE-2025-68166?: CVE-2025-68166 is a medium-severity vulnerability in Jetbrains Teamcity, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2025-12-16.
How severe is CVE-2025-68166?: Medium severity. CVSS v3 base score is 5.4 out of 10.