What’s Vulnerable › Vulnerabilities

CVE-2019-15586

• Severity: medium (CVSS 6.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.8% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2020-01-28 · updated 2026-06-17
• Weakness: CWE-79

Description

A XSS exists in Gitlab CE/EE < 12.1.10 in the Mermaid plugin.

Affected products

• GitLab: from 12.1.0 before 12.1.10 — fixed in 12.1.10

How to fix

Upgrade to a fixed version: GitLab 12.1.10. Check the vendor advisory for mitigations.

References

• https://about.gitlab.com/blog/2019/09/30/security-release-gitlab-12-dot-3-dot-2-released/
• https://hackerone.com/reports/645043
• https://about.gitlab.com/blog/2019/09/30/security-release-gitlab-12-dot-3-dot-2-released/
• https://hackerone.com/reports/645043

Get alerted when CVE-2019-15586 or the next vulnerability affects your stack