What is CVE-2020-13319?

CVE-2020-13319 is a medium-severity vulnerability in GitLab, classified under Missing Authorization. CVSS score: 4.3/10. Published 2020-09-30.

How severe is CVE-2020-13319?

Medium severity. CVSS v3 base score is 4.3 out of 10.

Auth bypass in GitLab

CVE-2020-13319

An issue has been discovered in GitLab affecting versions prior to 13.1.2, 13.0.8 and 12.10.13. Missing permission check for adding time spent on an issue.

Vulnerability class: Broken Access Control

Published 2020-09-30 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N.

EPSS exploit prediction

EPSS: 0.008 (54.1th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 54th percentile — 54.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: 0.000

Affected products

GitLab — versions >=8.16, <12.10.13, >=13.0, <13.0.8, >=13.1, <13.1.2

Weakness classification (CWE)

CWE-862 — Missing Authorization

References

gitlab.com/gitlab-org/gitlab/-/issues/201806 (Exploit, Vendor Advisory)
hackerone.com/reports/755188 (Permissions Required)
gitlab.com/gitlab-org/cves/-/blob/master/2020/CVE-2020-13319.json (Vendor Advisory)

Frequently asked questions

What is CVE-2020-13319?: CVE-2020-13319 is a medium-severity vulnerability in GitLab, classified under Missing Authorization. CVSS score: 4.3/10. Published 2020-09-30.
How severe is CVE-2020-13319?: Medium severity. CVSS v3 base score is 4.3 out of 10.