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Security advisory

Type: advisorySources: OSVCVE: CVE-2018-19573

GitLab CE/EE, versions 10.3 up to 11.x before 11.3.11, 11.4 before 11.4.8, and 11.5 before 11.5.1, are vulnerable to an XSS vulnerability in Markdown fields via Mermaid.

Products
Not specified
Affected versions
Not specified
Fixed versions
Not specified
CVEs
CVE-2018-19573
Confirmed fixed CVEs
Not specified
Updated in this feed
1 Nov 2026, 04:21 UTC · Revision 1

Source evidence

CVE-2018-19573

core-osv · Original source

Published 10 Jul 2019, 16:15 UTC

GitLab CE/EE, versions 10.3 up to 11.x before 11.3.11, 11.4 before 11.4.8, and 11.5 before 11.5.1, are vulnerable to an XSS vulnerability in Markdown fields via Mermaid.

osv:CVE-2018-19573
Complete source record
{
  "id": "897c4cc093fd23beca39f3b3a425177d30fae85e8b4f7820d5c2c6a954097443",
  "url": "https://osv.dev/vulnerability/CVE-2018-19573",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2018-19573",
    "summary": "GitLab CE/EE, versions 10.3 up to 11.x before 11.3.11, 11.4 before 11.4.8, and 11.5 before 11.5.1, are vulnerable to an XSS vulnerability in Markdown fields via Mermaid.",
    "evidence": "osv:CVE-2018-19573",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2018-19573",
      "aliases": [
        "CVE-2018-19573"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://gitlab.com/gitlab-org/gitlab",
              "type": "GIT",
              "events": [
                {
                  "introduced": "c6f72ac9a88521257991aa9a0cc6d558126f5bb9"
                },
                {
                  "fixed": "97bf583178874e2617c347c33ca30b9b33b97402"
                },
                {
                  "introduced": "cfe266cbac3c5d413e9c061fff420630e517005f"
                },
                {
                  "fixed": "966cce5bfe657c7676dcc02125bb89bd3f067887"
                },
                {
                  "introduced": "cb71fca38c3de0c212685f97a46ee8426f63d301"
                },
                {
                  "fixed": "cab68f5d2035026e5e29ef68b79fdfe5ca90f947"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:*",
                    "range": [
                      {
                        "introduced": "11.0.0"
                      },
                      {
                        "fixed": "11.3.11"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "cpe": "cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*",
                    "range": [
                      {
                        "introduced": "11.0.0"
                      },
                      {
                        "fixed": "11.3.11"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "cpe": "cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:*",
                    "range": [
                      {
                        "introduced": "11.4.0"
                      },
                      {
                        "fixed": "11.4.8"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "cpe": "cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*",
                    "range": [
                      {
                        "introduced": "11.4.0"
                      },
                      {
                        "fixed": "11.4.8"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "cpe": "cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:*",
                    "range": [
                      {
                        "introduced": "11.5.0"
                      },
                      {
                        "fixed": "11.5.1"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "cpe": "cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*",
                    "range": [
                      {
                        "introduced": "11.5.0"
                      },
                      {
                        "fixed": "11.5.1"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v11.5.0-ee"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-19573.json"
          }
        }
      ],
      "modified": "2026-10-30T10:30:49.646299068Z",
      "provider": "osv",
      "references": [
        "https://about.gitlab.com/2018/11/28/security-release-gitlab-11-dot-5-dot-1-released/",
        "https://gitlab.com/gitlab-org/gitlab-ce/issues/45906"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2018-19573",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 429603,
  "published_at": "2019-07-10T16:15:10.807+00:00"
}