{"id":"UBUNTU-CVE-2020-13262","details":"Client-Side code injection through Mermaid markup in GitLab CE/EE 12.9 and later through 13.0.1 allows a specially crafted Mermaid payload to PUT requests on behalf of other users via clicking on a link","modified":"2025-10-24T04:48:30Z","published":"2020-06-19T22:15:00Z","upstream":["CVE-2020-13262"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2020-13262"},{"type":"REPORT","url":"https://gitlab.com/gitlab-org/cves/-/blob/master/2020/CVE-2020-13262.json"},{"type":"REPORT","url":"https://gitlab.com/gitlab-org/gitlab/-/issues/211949"},{"type":"REPORT","url":"https://hackerone.com/reports/824689"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2020-13262"}],"affected":[{"package":{"name":"gitlab","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/gitlab@8.5.8+dfsg-5?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["8.4.3+dfsg-9","8.4.3+dfsg-12","8.5.8+dfsg-5"],"ecosystem_specific":{"binaries":[{"binary_version":"8.5.8+dfsg-5","binary_name":"gitlab"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-13262.json"}}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"},{"type":"Ubuntu","score":"medium"}]}