Vulnerability Description
Improper validation of ipynb files in GitLab CE/EE version 13.5 and above allows an attacker to execute arbitrary JavaScript code on the victim's behalf.
CVSS Score
8.7
HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Gitlab | Gitlab | >= 13.5.0, < 14.2.6 |
Related Weaknesses (CWE)
References
- https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39906.jsonVendor Advisory
- https://gitlab.com/gitlab-org/gitlab/-/issues/341566Broken Link
- https://hackerone.com/reports/1347600Permissions RequiredThird Party Advisory
- https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39906.jsonVendor Advisory
- https://gitlab.com/gitlab-org/gitlab/-/issues/341566Broken Link
- https://hackerone.com/reports/1347600Permissions RequiredThird Party Advisory
FAQ
What is CVE-2021-39906?
CVE-2021-39906 is a vulnerability with a CVSS score of 8.7 (HIGH). Improper validation of ipynb files in GitLab CE/EE version 13.5 and above allows an attacker to execute arbitrary JavaScript code on the victim's behalf.
How severe is CVE-2021-39906?
CVE-2021-39906 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-2021-39906?
Check the references section above for vendor advisories and patch information. Affected products include: Gitlab Gitlab.