CVE-2021-39887

HIGH

GitLab 8.4.0-14.1.7 - Stored Cross-Site Scripting in GitLab Flavored Markdown

Title source: llm
STIX 2.1

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.

References (3)

Core 3
Core References
Permissions Required, Third Party Advisory x_refsource_misc
https://hackerone.com/reports/1218174

Scores

CVSS v3 7.3
EPSS 0.0020
EPSS Percentile 42.0%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N

Details

CWE
CWE-79
Status published
Products (1)
gitlab/gitlab 8.4.0 - 14.1.7 (2 CPE variants)
Published Oct 05, 2021
Tracked Since Feb 18, 2026