JVN#76799957
JetBrains YouTrack vulnerable to cross-site scripting
Overview
YouTrack provided by JetBrains s.r.o. contains a cross-site scripting vulnerability.
Products Affected
- YouTrack versions prior to 2026.2.18068
Description
YouTrack provided by JetBrains s.r.o. contains the following vulnerability:
- Cross-Site Scripting (CWE-79)
- CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N Base Score 4.8
- CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N Base Score 5.4
- CVE-2026-75048
Impact
When a malicious user creates a page containing some crafted contents and a victim user view that page, the contained script may be executed on the victim user's web browser.
Solution
Update the Software
Update the software to the latest version according to the information provided by the developer.
Vendor Status
| Vendor | Link |
| JetBrains s.r.o. | Stored XSS via the fenced code-block language label was possible (JT-97453) |
References
JPCERT/CC Addendum
Vulnerability Analysis by JPCERT/CC
Credit
Yusuke Akagi of Mitsui Bussan Secure Directions, Inc. reported this vulnerability to IPA.
In coordination with the developer, JPCERT/CC found that the vendor had found this vulnerability independently in its internal audit and already fixed it.
Further coordination reached to this JVN advisory published.