CVE-2021-39885 Information

Description

A Stored XSS in merge request creation page in all versions of Gitlab EE starting from 13.7 before 14.1.7 all versions starting from 14.2 before 14.2.5 and all versions starting from 14.3 before 14.3.1 allows an attacker to execute arbitrary JavaScript code on the victim’s behalf via malicious approval rule names

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Reference

https://hackerone.com/reports/1342009 https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39885.json https://gitlab.com/gitlab-org/gitlab/-/issues/341140

Attack Complexity

LOW

Privileges Required

LOW

User Interaction Required

LOW

Scope

REQUIRED

Confidentiality Impact

CHANGED

Integrity Impact

LOW

Availability Impact

LOW

Base Score

NONE

Base Severity

5.4