CVE-2021-39910

low-risk
Published 2021-12-13

An issue has been discovered in GitLab CE/EE affecting all versions starting from 12.6 before 14.3.6, all versions starting from 14.4 before 14.4.4, all versions starting from 14.5 before 14.5.2. GitLab was vulnerable to HTML Injection through the Swagger UI feature.

Do I need to act?

-
0.18% chance of exploitation
EPSS score — low exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
2
CVSS 2.6/10 Low
NETWORK / HIGH complexity

Affected Products (2)

Affected Vendors

Gitlab

References (6)

Vendor Advisory https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39910.json
Broken Link https://gitlab.com/gitlab-org/gitlab/-/issues/325901
Permissions Required https://hackerone.com/reports/1133656
Vendor Advisory https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39910.json
Broken Link https://gitlab.com/gitlab-org/gitlab/-/issues/325901
Permissions Required https://hackerone.com/reports/1133656
18
/ 100
low-risk
Severity 10/34 · Low
Exploitability 1/34 · Minimal
Exposure 7/34 · Low