CVE-2021-39906: XSS
First published: Thu Nov 04 2021(Updated: )
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.
Credit: cve@gitlab.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| GitLab | >=13.5.0<14.2.6 | |
| GitLab | >=13.5.0<14.2.6 | |
| GitLab | >=14.3.0<14.3.4 | |
| GitLab | >=14.3.0<14.3.4 | |
| GitLab | >=14.4.0<14.4.1 | |
| GitLab | >=14.4.0<14.4.1 |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2021-39906?
CVE-2021-39906 has a high severity rating due to its potential for executing arbitrary JavaScript code.
How do I fix CVE-2021-39906?
To fix CVE-2021-39906, update GitLab to the latest version that is above 14.4.1.
What versions of GitLab are affected by CVE-2021-39906?
GitLab versions from 13.5.0 up to 14.4.1 are affected by CVE-2021-39906.
What type of attacks can CVE-2021-39906 facilitate?
CVE-2021-39906 can facilitate attacks allowing execution of arbitrary JavaScript on behalf of the victim.
Is there a workaround for CVE-2021-39906 if I cannot update immediately?
There is no official workaround for CVE-2021-39906, so it is recommended to apply the update as soon as possible.
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- agent/references
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- agent/description
- collector/mitre-cve
- source/MITRE
- agent/severity
- agent/last-modified-date
- agent/first-publish-date
- agent/event
- agent/source
- agent/tags
- collector/nvd-index
- agent/software-canonical-lookup-request
- vendor/gitlab
- canonical/gitlab
- version/gitlab/13.5.0
- version/gitlab/14.3.0
- version/gitlab/14.4.0