Vulnerability Description
A Stored XSS in merge request creation page in all versions of Gitlab EE starting from 13.7 before 14.1.7, all versions starting from 14.2 before 14.2.5, and all versions starting from 14.3 before 14.3.1 allows an attacker to execute arbitrary JavaScript code on the victim's behalf via malicious approval rule names
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Gitlab | Gitlab | >= 13.7.0, < 14.1.7 |
Related Weaknesses (CWE)
References
- https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39885.jsonVendor Advisory
- https://gitlab.com/gitlab-org/gitlab/-/issues/341140ExploitIssue TrackingVendor Advisory
- https://hackerone.com/reports/1342009ExploitPermissions RequiredThird Party Advisory
- https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39885.jsonVendor Advisory
- https://gitlab.com/gitlab-org/gitlab/-/issues/341140ExploitIssue TrackingVendor Advisory
- https://hackerone.com/reports/1342009ExploitPermissions RequiredThird Party Advisory
FAQ
What is CVE-2021-39885?
CVE-2021-39885 is a vulnerability with a CVSS score of 8.7 (HIGH). A Stored XSS in merge request creation page in all versions of Gitlab EE starting from 13.7 before 14.1.7, all versions starting from 14.2 before 14.2.5, and all versions starting from 14.3 before 14....
How severe is CVE-2021-39885?
CVE-2021-39885 has been rated HIGH with a CVSS base score of 8.7/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-39885?
Check the references section above for vendor advisories and patch information. Affected products include: Gitlab Gitlab.