Teamcity
CVE-2025-26493
MEDIUM
Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A05:2025 - Injection
ASVS 5.0
V1 - Encoding and Sanitization Output encoding, context-aware escaping
MITRE ATT&CK
2 techniques across 2 tactics: Initial Access, Execution The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. |
| Impact | CVSS score of 4.6 (MEDIUM). Attack characteristics: network attack vector, low complexity, low privileges required, user interaction required. EPSS exploitation probability: 15.67%. |
| Exploit ScenarioDerived | A remote attacker could inject malicious scripts into web pages viewed by other users by sending crafted requests to the affected application. |
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Alert meAnalysisAIv1 – Mar 28, 2026
In JetBrains TeamCity before 2024.12.2 several DOM-based XSS were possible on the Code Inspection Report tab. Rated medium severity (CVSS 4.6), this vulnerability is remotely exploitable, low attack complexity. Epss exploitation probability 15.7% and no vendor patch available.
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.
Affects your stack
Find out whether the stacks and servers you run are on an affected version.
Checking this CVE against your own stacks and servers is part of the Basic plan and up.
Technical ContextAI · show details
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. In JetBrains TeamCity before 2024.12.2 several DOM-based XSS were possible on the Code Inspection Report tab Affected products include: Jetbrains Teamcity. Version information: before 2024.12.2.
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Severity by source
AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
DescriptionCVE.org
In JetBrains TeamCity before 2024.12.2 several DOM-based XSS were possible on the Code Inspection Report tab
Executive ViewAI
Organizations using JetBrains TeamCity should be aware of moderate risk from CVE-2025-26493, a cross-site scripting vulnerability rated CVSS 4.6. Attackers could inject scripts to steal sessions or perform actions as authenticated users. With an EPSS score of 16%, exploitation is possible in exposed deployments. Organizations should apply vendor updates when available and monitor for exploitation.
Apply vendor patch. If patching is delayed: implement CSP headers, enable HttpOnly cookies, deploy WAF XSS rules.
Threat Intelligence Overview
NVD
CVE.org
EPSS
How this decision was reached
The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.
What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
Cross-Site Scripting occurs when an application accepts untrusted data and sends it to a web browser without proper validation or encoding.
Affected Products (CPE)CVE.org
Path traversal in JetBrains TeamCity before 2023.11.4 enables remote attackers to perform a limited set of administrativ
Remote code execution in JetBrains TeamCity before 2026.1.3 and 2025.11.7 allows unauthenticated attackers to execute ar
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
Remote code execution in JetBrains TeamCity before 2026.1.2 and 2025.11.6 allows an attacker to escape the Kotlin DSL sa
Sandbox escape in JetBrains TeamCity's Kotlin DSL configuration mechanism allows an attacker who can supply or modify ve
JetBrains TeamCity versions prior to 2026.2, 2026.1.4, and 2025.11.8 contain a flaw in the password reset mechanism that
Remote code execution affects JetBrains TeamCity releases older than 2026.2, 2026.1.4, and 2025.11.8, where a type-white
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
GitHub PoC
Exploit-DB