What is CVE-2020-15817?

CVE-2020-15817 is a high-severity vulnerability in Jetbrains Youtrack. CVSS score: 8.8/10. Published 2020-08-08.

How severe is CVE-2020-15817?

High severity. CVSS v3 base score is 8.8 out of 10.

Vulnerability in Jetbrains Youtrack

CVE-2020-15817

In JetBrains YouTrack before 2020.1.1331, an external user could execute commands against arbitrary issues.

Published 2020-08-08 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.020 (80.9th percentile), scored 2026-10-23.

Low probability of exploitation in the next 30 days, but still tracked. 81st percentile — 80.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.020 · newest: 0.020 · change: 0.000

Affected products

Jetbrains Youtrack

References

blog.jetbrains.com (Vendor Advisory)
blog.jetbrains.com/blog/2020/08/06/jetbrains-security-bulletin-q2-2020/ (Vendor Advisory)

Frequently asked questions

What is CVE-2020-15817?: CVE-2020-15817 is a high-severity vulnerability in Jetbrains Youtrack. CVSS score: 8.8/10. Published 2020-08-08.
How severe is CVE-2020-15817?: High severity. CVSS v3 base score is 8.8 out of 10.