What is CVE-2020-15821?

CVE-2020-15821 is a medium-severity vulnerability in Jetbrains Youtrack, classified under Incorrect Default Permissions. CVSS score: 6.5/10. Published 2020-08-08.

How severe is CVE-2020-15821?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Vulnerability in Jetbrains Youtrack

CVE-2020-15821

In JetBrains YouTrack before 2020.2.6881, a user without permission is able to create an article draft.

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

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N.

EPSS exploit prediction

EPSS: 0.009 (59.2th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 59th percentile — 59.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.009 · newest: 0.009 · change: 0.000

Affected products

Jetbrains Youtrack

Weakness classification (CWE)

CWE-276 — Incorrect Default Permissions

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-2020-15821?: CVE-2020-15821 is a medium-severity vulnerability in Jetbrains Youtrack, classified under Incorrect Default Permissions. CVSS score: 6.5/10. Published 2020-08-08.
How severe is CVE-2020-15821?: Medium severity. CVSS v3 base score is 6.5 out of 10.