What’s Vulnerable › Vulnerabilities

CVE-2020-12276

• Severity: medium (CVSS 4.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2020-04-29 · updated 2026-06-17
• Weakness: CWE-79

Description

GitLab 9.5.9 through 12.9 is vulnerable to stored XSS in an admin notification feature.

Affected products

• GitLab: from 9.5.9 before 12.7.8; from 12.8.0 before 12.8.8; from 12.9.0 before 12.9.1 — fixed in 12.7.8, 12.8.8, 12.9.1

How to fix

Upgrade to a fixed version: GitLab 12.7.8, 12.8.8, 12.9.1. Check the vendor advisory for mitigations.

References

• https://about.gitlab.com/releases/2020/03/26/security-release-12-dot-9-dot-1-released/
• https://about.gitlab.com/releases/2020/03/26/security-release-12-dot-9-dot-1-released/

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