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5.4

In JetBrains TeamCity before 2020.2.3, stored XSS was possible on several pages.

CVE-2021-31908 · published 5 years ago
Summary

In JetBrains TeamCity before 2020.2.3, stored XSS was possible on several pages.

What to do
  • Update jetbrains teamcity to version 2020.2.3 or later.
Affected software
VendorProductAffected versions
jetbrains teamcity < 2020.2.3
cpe:2.3:a:jetbrains:teamcity:*:*:*:*:*:*:*:*
Original advisory text
In JetBrains TeamCity before 2020.2.3, stored XSS was possible on several pages.
In JetBrains TeamCity before 2020.2.3, stored XSS was possible on several pages.
References
Fix within
Internet-facing 60 days
Internal At next upgrade
  • Not known to be exploited
  • Needs hands-on effort to exploit (estimated)
  • Gives an attacker partial control (estimated)
Severity
5.4 Medium
Exploitation
<1% chance of attack within 30 days
Type
CWE-79Cross-site Scripting (XSS)
Timeline
Published11 May 2021
Updated4 Nov 2026
First seen29 Sep 2026
Sources
CVE-2021-31908 · NVD
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