Auth bypass in GitLab
CVE-2020-13334
In GitLab versions prior to 13.2.10, 13.3.7 and 13.4.2, improper authorization checks allow a non-member of a project/group to change the confidentiality attribute of issue via mutation GraphQL query
Vulnerability class: Broken Access Control
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.015 (73.7th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 74th percentile — 73.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.015 · newest: 0.015 · change: 0.000
Affected products
- GitLab — versions >=8.6, <13.2.10, >=13.3.0, <13.3.7, >=13.4.0, <13.4.2
Weakness classification (CWE)
References
- gitlab.com/gitlab-org/gitlab/-/issues/195327 (Broken Link)
- hackerone.com/reports/762271 (Permissions Required, Third Party Advisory)
- gitlab.com/gitlab-org/cves/-/blob/master/2020/CVE-2020-13334.json (Vendor Advisory)
Frequently asked questions
- What is CVE-2020-13334?
- CVE-2020-13334 is a medium-severity vulnerability in GitLab, classified under Incorrect Authorization. CVSS score: 5.9/10. Published 2020-10-07.
- How severe is CVE-2020-13334?
- Medium severity. CVSS v3 base score is 5.9 out of 10.