{"id":"CVE-2019-6784","aliases":["EUVD-2019-16342","GHSA-54fp-mchx-c7m5","UBUNTU-CVE-2019-6784"],"status":"published","title":"An issue was discovered in GitLab Community and Enterprise Edition before 11.5.8, 11.6.x before...","description":"An issue was discovered in GitLab Community and Enterprise Edition before 11.5.8, 11.6.x before 11.6.6, and 11.7.x before 11.7.1. It allows XSS (issue 1 of 2). Markdown fields contain a lack of input validation and output encoding when processing KaTeX that results in a persistent XSS.","severity":{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-10","score":0.01055,"percentile":0.64693,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-79"],"published":"2019-09-09T19:21:45Z","modified":"2026-10-30T10:30:55Z","affected":[{"source":"osv","ecosystem":"Ubuntu:16.04:LTS","package":"gitlab","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["8.4.3+dfsg-9","8.4.3+dfsg-12","8.5.8+dfsg-5"]}],"products":[{"vendor":"gitlab","product":"gitlab"}],"references":[{"url":"https://about.gitlab.com/2019/01/31/security-release-gitlab-11-dot-7-dot-3-released/","tags":["x_refsource_CONFIRM","x_transferred","Release Notes","Vendor Advisory","advisory","report"]},{"url":"https://gitlab.com/gitlab-org/gitlab-ce/issues/54416","tags":["x_refsource_CONFIRM","x_transferred","Exploit","Issue Tracking","Third Party Advisory","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2019-6784"},{"url":"https://about.gitlab.com/2019/01/31/security-release-gitlab-11-dot-7-dot-3-released"},{"url":"https://github.com/advisories/GHSA-54fp-mchx-c7m5"},{"url":"https://ubuntu.com/security/CVE-2019-6784","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2019-6784","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2019-6784","description":"An issue was discovered in GitLab Community and Enterprise Edition before 11.5.8, 11.6.x before 11.6.6, and 11.7.x before 11.7.1. It allows XSS (issue 1 of 2). Markdown fields contain a lack of input validation and output encoding when processing KaTeX that results in a persistent XSS.","status":"published","published":"2019-09-09T19:21:45Z","modified":"2024-08-04T20:31:04.104Z","updated_at":"2026-11-02T14:20:23.381621Z"}],"euvd":[{"id":"EUVD-2019-16342","description":"An issue was discovered in GitLab Community and Enterprise Edition before 11.5.8, 11.6.x before 11.6.6, and 11.7.x before 11.7.1. It allows XSS (issue 1 of 2). Markdown fields contain a lack of input validation and output encoding when processing KaTeX that results in a persistent XSS.","status":"published","published":"2019-09-09T19:21:45Z","modified":"2024-08-04T20:31:04Z","updated_at":"2026-11-03T03:06:48.069977Z"}],"ghsa":[{"id":"GHSA-54fp-mchx-c7m5","title":"An issue was discovered in GitLab Community and Enterprise Edition before 11.5.8, 11.6.x before...","description":"An issue was discovered in GitLab Community and Enterprise Edition before 11.5.8, 11.6.x before 11.6.6, and 11.7.x before 11.7.1. It allows XSS (issue 1 of 2). Markdown fields contain a lack of input validation and output encoding when processing KaTeX that results in a persistent XSS.","status":"published","published":"2022-05-24T16:55:47Z","modified":"2024-04-04T01:54:42Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:56:03.89673Z"}],"nvd":[{"id":"CVE-2019-6784","description":"An issue was discovered in GitLab Community and Enterprise Edition before 11.5.8, 11.6.x before 11.6.6, and 11.7.x before 11.7.1. It allows XSS (issue 1 of 2). Markdown fields contain a lack of input validation and output encoding when processing KaTeX that results in a persistent XSS.","status":"published","published":"2019-09-09T20:15:11.37Z","modified":"2026-06-17T02:39:40.393Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"primary"},{"version":"2.0","score":4.3,"vector":"AV:N/AC:M/Au:N/C:N/I:P/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:05:25.691233Z"}],"osv":[{"id":"CVE-2019-6784","description":"An issue was discovered in GitLab Community and Enterprise Edition before 11.5.8, 11.6.x before 11.6.6, and 11.7.x before 11.7.1. It allows XSS (issue 1 of 2). Markdown fields contain a lack of input validation and output encoding when processing KaTeX that results in a persistent XSS.","status":"published","published":"2019-09-09T20:15:11.37Z","modified":"2026-10-30T10:30:55.894283305Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T15:44:12.675558Z"},{"id":"UBUNTU-CVE-2019-6784","description":"An issue was discovered in GitLab Community and Enterprise Edition before 11.5.8, 11.6.x before 11.6.6, and 11.7.x before 11.7.1. It allows XSS (issue 1 of 2). Markdown fields contain a lack of input validation and output encoding when processing KaTeX that results in a persistent XSS.","status":"published","published":"2019-09-09T20:15:00Z","modified":"2025-10-24T04:47:29Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T15:54:21.741399Z"}]}}