Stored XSS Vulnerability in JetBrains TeamCity Affecting GitHub Checks Webhook
CVE-2025-47851

5.4MEDIUM

Key Information:

Vendor

Jetbrains
Status
Teamcity
Vendor
CVE Published:
20 May 2025

What is CVE-2025-47851?

A stored XSS vulnerability exists in JetBrains TeamCity that could be exploited through GitHub Checks Webhook, potentially allowing unauthenticated attackers to execute malicious scripts in the context of a user’s session. This vulnerability is crucial for organizations using TeamCity to ensure proper security measures are in place to prevent data breaches and unauthorized actions stemming from compromised user sessions.

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Deploy the Patch

Affected Version(s)

TeamCity 0 < 2025.03.2

References

https://www.jetbrains.com/privacy-security/issues-fixed/

CVSS V3.1

Score:
5.4
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
Required
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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