XSS in GitLab

CVE-2023-6033

Improper neutralization of input in Jira integration configuration in GitLab CE/EE, affecting all versions from 15.10 prior to 16.6.1, 16.5 prior to 16.5.3, and 16.4 prior to 16.4.3 allows attacker to execute javascript in victim's browser.

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: 0.006 (44.2th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 44th percentile — 44.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2023-6033: held from 0.006 to 0.006.

EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000

Affected products

  • GitLab — versions 15.10, 16.5, 16.6

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2023-6033?
CVE-2023-6033 is a high-severity vulnerability in GitLab, classified under Cross-site Scripting. CVSS score: 8.7/10. Published 2023-12-01.
How severe is CVE-2023-6033?
High severity. CVSS v3 base score is 8.7 out of 10.
Is CVE-2023-6033 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.