What is the CVSS score of CVE-2025-52879?

CVE-2025-52879 has a CVSS 3.1 base score of 4.8 (Medium). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N. EPSS exploitation probability: 0.0%.

Which versions of Node.js are affected by CVE-2025-52879?

Organizations using JetBrains TeamCity should be aware of moderate risk from CVE-2025-52879, a cross-site scripting vulnerability rated CVSS 4.8.. A patch is available.

How to fix or mitigate CVE-2025-52879?

Within 30 days: Identify affected systems running JetBrains TeamCity and apply vendor patches as part of regular patch cycle. Verify Content-Security-Policy and output encoding.

Node.js CVE-2025-52879

EUVD-2025-19035 MEDIUM

Cross-site Scripting (XSS) (CWE-79)

2025-06-23 cve@jetbrains.com

XSS Node.js Teamcity

4.8

CVSS 3.1

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

High

User Interaction

Required

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

Lifecycle Timeline

Patch available

Apr 16, 2026 - 05:29 EUVD

2025.03.3

EUVD ID Assigned

Mar 15, 2026 - 22:10 euvd

EUVD-2025-19035

Analysis Generated

Mar 15, 2026 - 22:10 vuln.today

CVE Published

Jun 23, 2025 - 15:15 nvd

MEDIUM 4.8

DescriptionNVD

In JetBrains TeamCity before 2025.03.3 reflected XSS in the NPM Registry integration was possible

Analysis

In JetBrains TeamCity before 2025.03.3 reflected XSS in the NPM Registry integration was possible

Technical ContextAI

Cross-site scripting (XSS) allows injection of client-side scripts into web pages viewed by other users due to insufficient output encoding.

RemediationAI

Encode all user-supplied output contextually (HTML, JS, URL). Implement Content Security Policy (CSP) headers. Use HTTPOnly and Secure cookie flags.

CVE-2025-52879 vulnerability details – vuln.today

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