CVE-2025-57731

High

Published: 20 August 2025

Published

20 August 2025

Modified

21 August 2025

KEV Added

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Patch

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CVSS Score v3.1 8.7 CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N

EPSS Score 0.0009 26.2th percentile

Risk Priority 17 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2025-57731 is a high-severity Cross-site Scripting (CWE-79) vulnerability in Jetbrains Youtrack. Its CVSS base score is 8.7 (High).

Operationally, ranked at the 26.2th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

In JetBrains YouTrack before 2025.2.92387 stored XSS was possible via Mermaid diagram content

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

jetbrains

youtrack

≤ 2025.2.92387

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

addresses: CWE-79

Penetration testing submits XSS payloads to web applications, detecting cross-site scripting flaws for subsequent remediation.

addresses: CWE-79

Validates web inputs to reject script-related content that could produce XSS.

addresses: CWE-79

Output validation against expected content can reject or sanitize script content in generated web pages, reducing XSS exploitability.