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CVE-2026-103489

Estado: AnalizadaMedia (5.4)—

In JetBrains YouTrack before 2026.2.19422 hTML injection in VCS command failure notifications was possible

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

🎯 Técnicas ATT&CK

Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.

CWE-79 (HTML injection) en notificaciones permite XSS (T1189). Vector AV:N/UI:R confirma navegador. Los impactos potenciales incluyen ejecución de scripts en el cliente (T1059.007) y manipulación de datos mostrados (T1565.002); confianza moderada por falta de detalles explícitos en el texto.

Inferido por nuestro agente de análisis a partir de la descripción oficial, el vector CVSS y la CWE, y comprobado por un supervisor. Puede contener errores.

🛡️ Mitigaciones ATT&CK que cubren estas técnicas

Restrict Web-Based ContentUser TrainingExecution PreventionBehavior Prevention on EndpointEncrypt Sensitive InformationDisable or Remove Feature or Program

Tecnologías afectadas (1)

Jetbrains — Youtrack

CWE

Referencias

JSON original (NVD)

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