What is CVE-2023-4378?

CVE-2023-4378 is a medium-severity vulnerability in Gitlab, classified under Insertion of Sensitive Information into Sent Data. CVSS score: 5.5/10. Published 2023-09-01.

How severe is CVE-2023-4378?

Medium severity. CVSS v3 base score is 5.5 out of 10.

Vulnerability in Gitlab

CVE-2023-4378

An issue has been discovered in GitLab CE/EE affecting all versions starting from 11.8 before 16.1.5, all versions starting from 16.2 before 16.2.5, all versions starting from 16.3 before 16.3.1. A malicious Maintainer can, under specific circumstances, leak the sentry token by changing the configured URL in the Sentry error tracking settings page. This was as a result of an incomplete fix for CVE-2022-4365.

EPSS: 0.004 (35.2th percentile) — read the EPSS interpretation.

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.

Affected products

Gitlab — versions 16.3.0, 16.2, 11.8

Weakness classification (CWE)

CWE-201 — Insertion of Sensitive Information into Sent Data

References

cve@gitlab.com (issue-tracking, permissions-required, Broken Link)
cve@gitlab.com (Permissions Required, technical-description, exploit)

Frequently asked questions

What is CVE-2023-4378?: CVE-2023-4378 is a medium-severity vulnerability in Gitlab, classified under Insertion of Sensitive Information into Sent Data. CVSS score: 5.5/10. Published 2023-09-01.
How severe is CVE-2023-4378?: Medium severity. CVSS v3 base score is 5.5 out of 10.