Stored XSS in JetBrains YouTrack

Publication date: 2026-05-29

Last updated on: 2026-06-01

Assigner: JetBrains s.r.o.

Description

In JetBrains YouTrack before 2026.1.13162 stored XSS in project notification templates was possible

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published

2026-05-29

Last Modified

2026-06-01

Generated

2026-07-09

AI Q&A

2026-05-29

EPSS Evaluated

2026-07-08

NVD

CVE-2026-49368

EUVD

EUVD-2026-33416

Affected Vendors & Products

Vendor	Product	Version / Range
jetbrains	youtrack	to 2026.1.13162 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-79	The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

Attack-Flow Graph

Executive Summary

This vulnerability is a stored Cross-Site Scripting (XSS) issue found in JetBrains YouTrack versions before 2026.1.13162. It occurs in project notification templates, where malicious scripts can be injected and stored, potentially executed when users view the affected templates.

Impact Analysis

The impact of this vulnerability is significant as it allows attackers to execute malicious scripts in the context of the affected application. According to the CVSS score of 8.7, it can lead to high confidentiality and integrity impacts, such as unauthorized access to sensitive information or manipulation of data, but it does not affect availability.

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