What is CVE-2023-41249?

CVE-2023-41249 is a medium-severity vulnerability in Jetbrains Teamcity, classified under Cross-site Scripting. CVSS score: 4.6/10. Published 2023-08-25.

How severe is CVE-2023-41249?

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

Is CVE-2023-41249 known to be exploited?

2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

XSS in Jetbrains Teamcity

CVE-2023-41249

In JetBrains TeamCity before 2023.05.3 reflected XSS was possible during copying Build Step

Vulnerability class: XSS (Cross-Site Scripting)

Published 2023-08-25 · 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: 0.555 (99.0th percentile), scored 2026-10-30.

High probability of exploitation in the next 30 days — patch promptly. 99th percentile — 99.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.555 · newest: 0.555 · change: 0.000

Affected products

Jetbrains Teamcity — versions 0

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

Public proof-of-concept exploits

References

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

Frequently asked questions

What is CVE-2023-41249?: CVE-2023-41249 is a medium-severity vulnerability in Jetbrains Teamcity, classified under Cross-site Scripting. CVSS score: 4.6/10. Published 2023-08-25.
How severe is CVE-2023-41249?: Medium severity. CVSS v3 base score is 4.6 out of 10.
Is CVE-2023-41249 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.