PT-2021-22731 · Gitlab · Gitlab Ce/Ee+1

Joaxcar · Published 2021-10-04 · Updated 2024-03-06 · CVE-2021-39885

Positive Technologies (AI Summary)

CVSS v3.1

8.7

High

Base vector

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

Name of the Vulnerable Software and Affected Versions: Gitlab EE versions 13.7 through 14.1.7 Gitlab EE versions 14.2 through 14.2.5 Gitlab EE versions 14.3 through 14.3.1

Description: A Stored XSS issue in the merge request creation page allows an attacker to execute arbitrary JavaScript code on the victim's behalf via malicious approval rule names.

Recommendations: For Gitlab EE versions 13.7 through 14.1.7, update to version 14.1.7 or later. For Gitlab EE versions 14.2 through 14.2.5, update to version 14.2.5 or later. For Gitlab EE versions 14.3 through 14.3.1, update to version 14.3.1 or later.

Exploit

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

BIT-GITLAB-2021-39885

CVE-2021-39885

Affected Products

Gitlab

Gitlab Ce/Ee

References · 10

• 🔥 https://hackerone.com/reports/1342009 · Exploit
• 🔥 https://gitlab.com/gitlab-org/gitlab/-/issues/341140 · Exploit
• https://ubuntu.com/security/CVE-2021-39885 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-39885 · Vendor Advisory
• https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39885.json · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-39885 · Security Note
• https://cve.org/CVERecord?id=CVE-2021-39885 · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2021-39885 · Vendor Advisory
• https://osv.dev/vulnerability/BIT-gitlab-2021-39885 · Vendor Advisory
• https://t.me/cvenotify/21881 · Telegram Post