VulnerabilityModified
CVE-2021-39887
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.
MEDIUM 5.4EPSS 0.86%
Does this matter?
Lower severity and a low EPSS score (0.86%). Track it; it rarely justifies an emergency change on its own.
Description
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
- 5.4 MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
- EPSS
- 0.86% probability · 57th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-79
- Affected
- gitlab/gitlab
- Source
- cve@gitlab.com
References
- https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39887.jsonVendor Advisory
- https://gitlab.com/gitlab-org/gitlab/-/issues/332903Broken Link
- https://hackerone.com/reports/1218174Permissions Required, Third Party Advisory
- https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39887.jsonVendor Advisory
- https://gitlab.com/gitlab-org/gitlab/-/issues/332903Broken Link
- https://hackerone.com/reports/1218174Permissions Required, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.