VulnerabilityAnalyzed
CVE-2026-103493
In JetBrains YouTrack before 2026.2.19422 stored XSS via Mermaid and LaTeX content was possible
HIGH 8.1EPSS 0.22%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.22%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
In JetBrains YouTrack before 2026.2.19422 stored XSS via Mermaid and LaTeX content was possible
- CVSS 3.1
- 8.1 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
- EPSS
- 0.22% probability · 13th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-79
- Affected
- jetbrains/youtrack
- Source
- cve@jetbrains.com
EPSS moved from 0.2% on 2 October 2026 to 0.2% on 26 October 2026.
References
- https://www.jetbrains.com/privacy-security/issues-fixed/Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.