CVE-2021-39887
5.4
MEDIUM
CVSS 3.1
EPSS 0.20%
Description
A stored Cross-Site Scripting vulnerability in the GitLab Flavored Markdown in GitLab CE/EE version 8.4 and above allowed an attacker to execute arbitrary JavaScript code on the victim's behalf.
How to fix CVE-2021-39887
To remediate CVE-2021-39887, upgrade the affected package to a fixed version below.
- Bitnami/gitlab—upgrade to 14.1.7 or later
Is CVE-2021-39887 being exploited?
Low — EPSS is 0.2%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- >= 8.4.0, < 14.1.7, >= 14.2.0, < 14.2.5, >= 14.3.0, < 14.3.1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM5.4 | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N |