CVE-2021-39885 — Cross-site Scripting in Gitlab

CWE-79 — Cross-site Scripting5 documents5 sources
Severity
5.4MEDIUMNVD
EPSS
0.2%
top 55.73%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
3
GitlabDebian GitlabGitlab EE
Timeline
PublishedOct 4
Latest updateMay 24

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:NExploitability: 2.3 | Impact: 2.7

Affected Packages5 packages

▶NVDgitlab/gitlab13.7.0 — 14.1.7+2
▶CVEListV5gitlab/gitlab>=13.7, <14.1.7, >=14.2, <14.2.5, >=14.3, <14.3.1+2
▶debiandebian/gitlab
▶gitlabgitlab/gitlab

🔴Vulnerability Details

2
GHSA
GHSA-cvqc-8rrv-whf2: A Stored XSS in merge request creation page in Gitlab EE version 13↗2022-05-24
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OSV
CVE-2021-39885: A Stored XSS in merge request creation page in all versions of Gitlab EE starting from 13↗2021-10-04
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📋Vendor Advisories

2
GitLab
CVE-2021-39885: 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↗2021-10-04
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Debian
CVE-2021-39885: gitlab - A Stored XSS in merge request creation page in all versions of Gitlab EE startin...↗2021
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