XSS in GitLab
CVE-2023-0050
An issue has been discovered in GitLab affecting all versions starting from 13.7 before 15.7.8, all versions starting from 15.8 before 15.8.4, all versions starting from 15.9 before 15.9.2. A specially crafted Kroki diagram could lead to a stored XSS on the client side which allows attackers to perform arbitrary actions on behalf of victims.
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.7 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N.
EPSS exploit prediction
EPSS: 0.924 (99.8th percentile), scored .
High probability of exploitation in the next 30 days — patch promptly. 100th percentile — 99.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.924 · newest: 0.924 · change: 0.000
Affected products
- GitLab — versions >=13.7, <15.7.8, >=15.8, <15.8.4, >=15.9, <15.9.2
Weakness classification (CWE)
Public proof-of-concept exploits
References
- gitlab.com/gitlab-org/gitlab/-/issues/387023 (Broken Link)
- hackerone.com/reports/1731349 (Permissions Required)
- gitlab.com/gitlab-org/cves/-/blob/master/2023/CVE-2023-0050.json (Vendor Advisory)
Frequently asked questions
- What is CVE-2023-0050?
- CVE-2023-0050 is a high-severity vulnerability in GitLab, classified under Cross-site Scripting. CVSS score: 8.7/10. Published 2023-03-09.
- How severe is CVE-2023-0050?
- High severity. CVSS v3 base score is 8.7 out of 10.
- Is CVE-2023-0050 known to be exploited?
- 5 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.