CVE-2023-34221: JetBrains TeamCity

Medium severity, CVSS 5.4. EPSS: 1% chance of exploitation in the next 30 days.

In JetBrains TeamCity before 2023.05 stored XSS in the Show Connection page was possible

Affected products

• JetBrains TeamCity: before 2023.05 (fixed in 2023.05)

Published 2023-05-31. Last modified 2026-06-17.