CVE-2021-39887

CVSS 7.3 HIGHEPSS 0.8%

Vexday Risk Score

21Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 7.3EPSS 0.8%KEV nãoPoC —Nuclei —Metasploit —Patch —

Lifecycle

05 Oct 2021Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

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.

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

Affected products

GitLab · GitLab

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References

https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39887.json https://gitlab.com/gitlab-org/gitlab/-/issues/332903 https://hackerone.com/reports/1218174