Teamcity
CVE-2021-25773
MEDIUM
Severity by source
AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Lifecycle Timeline
1DescriptionNVD
JetBrains TeamCity before 2020.2 was vulnerable to reflected XSS on several pages.
AnalysisAI
JetBrains TeamCity before 2020.2 was vulnerable to reflected XSS on several pages. Rated medium severity (CVSS 6.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Technical ContextAI
This vulnerability is classified as Cross-Site Scripting (XSS) (CWE-79), which allows attackers to inject malicious scripts into web pages viewed by other users. JetBrains TeamCity before 2020.2 was vulnerable to reflected XSS on several pages. Affected products include: Jetbrains Teamcity. Version information: before 2020.2.
RemediationAI
No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Sanitize all user input, use Content-Security-Policy headers, encode output contextually (HTML, JS, URL). Use frameworks with built-in XSS protection.
In JetBrains TeamCity before 2023.11.4 authentication bypass allowing to perform admin actions was possible. Rated criti
In JetBrains TeamCity before 2023.05.4 authentication bypass leading to RCE on TeamCity Server was possible. Rated criti
In JetBrains TeamCity before 2023.11.3 authentication bypass leading to RCE was possible. Rated critical severity (CVSS
In JetBrains TeamCity before 2024.07 access tokens could continue working after deletion or expiration. Rated critical s
In JetBrains TeamCity before 2022.04.7, 2022.10.6, 2023.05.6, 2023.11.5 authentication bypass was possible in specific e
In JetBrains TeamCity before 2023.05 bypass of permission checks allowing to perform admin actions was possible. Rated c
JetBrains TeamCity before 2021.2.3 was vulnerable to OS command injection in the Agent Push feature configuration. Rated
In JetBrains TeamCity before 2021.2.1, XXE during the parsing of the configuration file was possible. Rated critical sev
In JetBrains TeamCity before 2021.1.4, GitLab authentication impersonation was possible. Rated critical severity (CVSS 9
In JetBrains TeamCity before 2021.1.3, the X-Frame-Options header is missing in some cases. Rated critical severity (CVS
In JetBrains TeamCity before 2021.1.2, permission checks in the Agent Push functionality were insufficient. Rated critic
In JetBrains TeamCity before 2021.1.2, remote code execution via the agent push functionality is possible. Rated critica
Same weakness CWE-79 – Cross-site Scripting (XSS)
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External POC / Exploit Code
Leaving vuln.today