What is CVE-2025-26493?

CVE-2025-26493 is a medium-severity vulnerability in Jetbrains Teamcity, classified under Cross-site Scripting. CVSS score: 4.6/10. Published 2025-02-11.

How severe is CVE-2025-26493?

Medium severity. CVSS v3 base score is 4.6 out of 10.

XSS in Jetbrains Teamcity

CVE-2025-26493

In JetBrains TeamCity before 2024.12.2 several DOM-based XSS were possible on the Code Inspection Report tab

Vulnerability class: XSS (Cross-Site Scripting)

Published 2025-02-11 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 4.6 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.004 (29.1th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 29th percentile — 29.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · 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-2025-26493?: CVE-2025-26493 is a medium-severity vulnerability in Jetbrains Teamcity, classified under Cross-site Scripting. CVSS score: 4.6/10. Published 2025-02-11.
How severe is CVE-2025-26493?: Medium severity. CVSS v3 base score is 4.6 out of 10.