CVE-2021-39946

Improper neutralization of user input in GitLab CE/EE versions 14.3 to 14.3.6, 14.4 to 14.4.4, and 14.5 to 14.5.2 allowed an attacker to exploit XSS by abusing the generation of the HTML code related to emojis
Cross-site Scripting
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
8.7 HIGH
NETWORK
LOW
LOW
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N
GitLabCNA
8.7 HIGH
NETWORK
LOW
LOW
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N
CVEADP
---
---
Base Score
CVSS 3.x
EPSS Score
Percentile: 87%
VendorProductVersion
gitlabgitlab
14.3 ≤
𝑥
< 14.3.6
gitlabgitlab
14.3 ≤
𝑥
< 14.3.6
gitlabgitlab
14.4 ≤
𝑥
< 14.4.4
gitlabgitlab
14.4 ≤
𝑥
< 14.4.4
gitlabgitlab
14.5 ≤
𝑥
< 14.5.2
gitlabgitlab
14.5 ≤
𝑥
< 14.5.2
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
gitlab
sid
16.8.4-1
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
gitlab
xenial
ignored
trusty
ignored
Common Weakness Enumeration
References
https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39946.json
https://gitlab.com/gitlab-org/gitlab/-/issues/345657
https://hackerone.com/reports/1398305
https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39946.json
https://gitlab.com/gitlab-org/gitlab/-/issues/345657
https://hackerone.com/reports/1398305