CVE-2021-39910
Last modified
CVE-2021-39910 is a medium-severity vulnerability rated 4.3/10 on the CVSS scale. 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.. EPSS estimates a 0.95% chance of exploitation in the next 30 days.
Description
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Gitlab | Gitlab | >= 12.6.0, < 14.3.6 |
| Gitlab | Gitlab | >= 14.4.0, < 14.4.4 |
| Gitlab | Gitlab | >= 14.5.0, < 14.5.2 |
References
- https://hackerone.com/reports/1133656Permissions Required, Third Party Advisory
- https://hackerone.com/reports/1133656Permissions Required, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2021
- CVE-2021-39905An information disclosure vulnerability in the GitLab CE/EE …4.3
- CVE-2021-39906Improper validation of ipynb files in GitLab CE/EE version 1…6.1
- CVE-2021-39907A potential DOS vulnerability was discovered in GitLab CE/EE…5.3
- CVE-2021-39908In all versions of GitLab CE/EE starting from 0.8.0 before 1…7.5
- CVE-2021-39909Lack of email address ownership verification in the CODEOWNE…5.3
- CVE-2021-3991An Improper Authorization vulnerability exists in Dolibarr v…4.3
- CVE-2021-39911An improper access control flaw in all versions of GitLab CE…4.3
- CVE-2021-39912A potential DoS vulnerability was discovered in GitLab CE/EE…5.3
- CVE-2021-39913Accidental logging of system root password in the migration …6.7
- CVE-2021-39914A regular expression denial of service issue in GitLab versi…4.3
- CVE-2021-39915Improper access control in the GraphQL API in GitLab CE/EE a…5.3
- CVE-2021-39916Lack of an access control check in the External Status Check…4.3
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