CVE-2021-39873

Description

In all versions of GitLab CE/EE, there exists a content spoofing vulnerability which may be leveraged by attackers to trick users into visiting a malicious website by spoofing the content in an error response.

4.3

CVSS

Severity: Medium

CVSS 3.1 •

CVSS 2.0 •

EPSS 0.27%

Vendor Advisory gitlab.com

Affected: GitLab GitLab

References

Link	Tags
https://gitlab.com/gitlab-org/gitlab/-/issues/27241	broken link
https://hackerone.com/reports/504961	third party advisory permissions required
https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39873.json	vendor advisory

Frequently Asked Questions

What is the severity of CVE-2021-39873?: CVE-2021-39873 has been scored as a medium severity vulnerability.
How to fix CVE-2021-39873?: To fix CVE-2021-39873, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-39873 being actively exploited in the wild?: As for now, there are no information to confirm that CVE-2021-39873 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-39873?: CVE-2021-39873 affects GitLab GitLab.

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