Detections
Analytics
JetBrains TeamCity < 2020.2.3 Multiple Vulnerabilities
critical Nessus Plugin ID 339318
Synopsis
The instance of JetBrains TeamCity installed on the remote host is affected by multiple vulnerabilities.Description
The version of JetBrains TeamCity installed on the remote host is prior to 2020.2.3. It is, therefore, affected by multiple vulnerabilities:- In JetBrains TeamCity before 2020.2.3, XSS was possible. (CVE-2021-37542)
- In JetBrains TeamCity before 2020.2.3, argument injection leading to remote code execution was possible.
(CVE-2021-31909)
- In JetBrains TeamCity before 2020.2.3, stored XSS was possible on several pages. (CVE-2021-31908)
- In JetBrains TeamCity before 2020.2.3, information disclosure via SSRF was possible. (CVE-2021-31910)
- In JetBrains TeamCity before 2020.2.3, reflected XSS was possible on several pages. (CVE-2021-31911)
Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.
Solution
Upgrade to JetBrains TeamCity version 2020.2.3 or later.See Also
Plugin Details
Severity: Critical
ID: 339318
File Name: jetbrains_teamcity_2020_2_3.nasl
Version: 1.1
Type: Combined
Agent: windows, macosx, unix
Family: Misc.
Published: 8/25/2026
Updated: 8/25/2026
Configuration: Enable thorough checks (optional)
Supported Sensors: Nessus Agent, Nessus
Enable CGI Scanning: true
Risk Information
VPR
Risk Factor: Medium
Score: 4.9
Percentile: 57.15
CVSS v2
Risk Factor: High
Base Score: 7.5
Temporal Score: 5.5
Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P
CVSS Score Source: CVE-2021-31909
CVSS v3
Risk Factor: Critical
Base Score: 9.8
Temporal Score: 8.5
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C
Vulnerability Information
CPE: cpe:/a:jetbrains:teamcity
Required KB Items: installed_sw/JetBrains TeamCity
Exploit Ease: No known exploits are available
Patch Publication Date: 8/5/2021
Vulnerability Publication Date: 5/11/2021
Reference Information
CVE: CVE-2021-31908, CVE-2021-31909, CVE-2021-31910, CVE-2021-31911, CVE-2021-31912, CVE-2021-31913, CVE-2021-37542