CVE-2026-123309

EUVD-2026-118073
In JetBrains IntelliJ IDEA before 2026.3, 
2026.2.4 stored XSS was possible on the built-in web server via Markdown preview
Cross-site Scripting
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
6.1 MEDIUM
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N