What is CVE-2021-30482?

CVE-2021-30482 is a high-severity vulnerability in Jetbrains Upsource, classified under Improper Preservation of Permissions. CVSS score: 7.5/10. Published 2021-05-11.

How severe is CVE-2021-30482?

High severity. CVSS v3 base score is 7.5 out of 10.

Vulnerability in Jetbrains Upsource

CVE-2021-30482

In JetBrains UpSource before 2020.1.1883, application passwords were not revoked correctly

Published 2021-05-11 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.009 (60.7th percentile), scored 2026-10-23.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 61st percentile — 60.7% 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 Upsource

Weakness classification (CWE)

CWE-281 — Improper Preservation of Permissions

References

blog.jetbrains.com (Vendor Advisory)
blog.jetbrains.com/blog/2021/05/07/jetbrains-security-bulletin-q1-2021/ (Vendor Advisory)

Frequently asked questions

What is CVE-2021-30482?: CVE-2021-30482 is a high-severity vulnerability in Jetbrains Upsource, classified under Improper Preservation of Permissions. CVSS score: 7.5/10. Published 2021-05-11.
How severe is CVE-2021-30482?: High severity. CVSS v3 base score is 7.5 out of 10.