Detections
Analytics

JetBrains YouTrack < 2026.2.18068 Stored XSS (CVE-2026-75048)

high Nessus Plugin ID 338349

Language:

Synopsis

The remote host is affected by a stored cross-site scripting vulnerability.

Description

The version of JetBrains YouTrack installed on the remote host is prior to 2026.2.18068. It is, therefore, affected by a stored cross-site scripting vulnerability:

 - Stored XSS via the fenced code-block language label was possible. (CVE-2026-75048)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Upgrade to JetBrains YouTrack version 2026.2.18068, or later.

See Also

https://www.jetbrains.com/privacy-security/issues-fixed/

Plugin Details

Severity: High

ID: 338349

File Name: jetbrains_youtrack_CVE-2026-75048.nasl

Version: 1.2

Type: Local

Agent: windows, macosx, unix

Family: Misc.

Published: 8/20/2026

Updated: 8/21/2026

Configuration: Enable thorough checks (optional)

Supported Sensors: Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.9

Percentile: 52.6

CVSS v2

Risk Factor: High

Base Score: 8.5

Temporal Score: 6.3

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:P/A:N

CVSS Score Source: CVE-2026-75048

CVSS v3

Risk Factor: High

Base Score: 8.2

Temporal Score: 7.1

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/a:jetbrains:youtrack

Required KB Items: installed_sw/JetBrains YouTrack

Exploit Ease: No known exploits are available

Patch Publication Date: 8/17/2026

Vulnerability Publication Date: 8/17/2026

Reference Information

CVE: CVE-2026-75048

CWE: 79