CVE-2021-31911
In JetBrains TeamCity before 2020.2.3, reflected XSS was possible on several pages.
In JetBrains TeamCity before 2020.2.3, reflected XSS was possible on several pages.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- Required
What an attacker can affect
- Confidentiality
- Low
- Integrity
- Low
- Availability
- None
Exploit likelihood
What each source reports
NVD Score used
In JetBrains TeamCity before 2020.2.3, reflected XSS was possible on several pages.
- Record
CVE-2021-31911- CVSS 3.1
- 6.1 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N - CVSS 2.0
- 4.3 Medium
AV:N/AC:M/Au:N/C:N/I:P/A:N - Weakness
- CWE-79
- Updated
- 2026-11-02
CVE List No score
In JetBrains TeamCity before 2020.2.3, reflected XSS was possible on several pages.
- Record
CVE-2021-31911- Updated
- 2026-11-02
EUVDEUVD-2021-18786 No score
In JetBrains TeamCity before 2020.2.3, reflected XSS was possible on several pages.
- Record
EUVD-2021-18786- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-96rf-g76m-xmx8 No score
In JetBrains TeamCity before 2020.2.3, reflected XSS was possible on several pages.
In JetBrains TeamCity before 2020.2.3, reflected XSS was possible on several pages.
- Record
GHSA-96rf-g76m-xmx8- Weakness
- CWE-79
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2021-31911 is a medium vulnerability (CVSS 6.1) in Jetbrains Teamcity, published May 11, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.75%, the 55th percentile. No source names a fixed version.