Information disclosure in GitLab
CVE-2023-0838
An issue has been discovered in GitLab affecting versions starting from 15.1 before 15.8.5, 15.9 before 15.9.4, and 15.10 before 15.10.1. A maintainer could modify a webhook URL to leak masked webhook secrets by adding a new parameter to the url. This addresses an incomplete fix for CVE-2022-4342.
Vulnerability class: Information Disclosure
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.007 (52.4th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 52nd percentile — 52.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: 0.000
Affected products
- GitLab — versions >=15.1, <15.8.5, 15.10.0, >=15.9, <15.9.4
Weakness classification (CWE)
References
- gitlab.com/gitlab-org/gitlab/-/issues/391685 (Broken Link)
- hackerone.com/reports/1871136 (Permissions Required)
- gitlab.com/gitlab-org/cves/-/blob/master/2023/CVE-2023-0838.json (Vendor Advisory)
Frequently asked questions
- What is CVE-2023-0838?
- CVE-2023-0838 is a medium-severity vulnerability in GitLab, classified under Information Disclosure. CVSS score: 5.5/10. Published 2023-04-05.
- How severe is CVE-2023-0838?
- Medium severity. CVSS v3 base score is 5.5 out of 10.