What’s Vulnerable › Vulnerabilities

CVE-2021-22220

• Severity: medium (CVSS 5.4 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: 2021-06-08 · updated 2026-06-17
• Weakness: CWE-79

Description

An issue has been discovered in GitLab affecting all versions starting with 13.10. GitLab was vulnerable to a stored XSS in blob viewer of notebooks.

Affected products

• GitLab: from 13.10 through 13.10.5; from 13.11 through 13.11.5; from 13.12 through 13.12.2

References

• https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-22220.json
• https://gitlab.com/gitlab-org/gitlab/-/issues/294128
• https://hackerone.com/reports/1060114
• https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-22220.json
• https://gitlab.com/gitlab-org/gitlab/-/issues/294128
• https://hackerone.com/reports/1060114

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