SB20260817108 - Cross-site scripting in YouTrack
Published: August 17, 2026
Security Bulletin ID
SB20260817108
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Cross-site scripting (CVE-ID: CVE-2026-75048)
CWE-ID: CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CVSSv4: 5.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N]
The vulnerability allows a remote user to execute arbitrary script code in the victim's browser.
The vulnerability exists due to cross-site scripting in the fenced code-block language label when rendering crafted content. A remote user can inject a specially crafted code-block language label to execute arbitrary script code in the victim's browser.
Remediation
Install update from vendor's website.