Name: CVE-2021-39887: Improper Neutralization of Input During Web Page Generation
Creator: Rapid7
Published: 2021-10-05T00:00:00.000Z
License: https://www.rapid7.com/legal/website-terms-of-use/
Keywords: CVE, CVE-2021-39887, CWE-79, CVSS 7.3, EPSS 0.00202

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.

CVSS Details

CVSS 3.1 Base Score: 7.3
CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N)

Covered by Rapid7

Product	Vendor Advisory	Solution File	Added	Published
Freebsd	—	Upgrade gitlab-ce	Nov 4, 2022	Sep 30, 2021
Gitlab Gitlab	—	Upgrade Gitlab to the latest version	Apr 22, 2025	Oct 5, 2021

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CVSS Details

Covered by Rapid7

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