CVE-2026-100263EPSS p8.0%

CVE-2026-100263CVE-2026-100263

jetbrains / youtrack

Description

In JetBrains YouTrack before 2026.2.18991 stored HTML injection via the User-Agent header was possible

Scoring

CVSS 4.7 ()
VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:N
EPSS0.19% probability of exploitation · percentile 8.0% · 2026-10-05T12:00:23Z
Last modified2026-10-02
Sourced from NVD + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.