Security advisory

{
  "id": "1b1a958c4bd5cc885424dd0d8cf87ac4562ffafb2179a1f013696174f0e8840c",
  "url": "https://osv.dev/vulnerability/CVE-2019-18454",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2019-18454",
    "summary": "An issue was discovered in GitLab Community and Enterprise Edition 10.5 through 12.4 in link validation for RDoc wiki pages feature. It has XSS.",
    "evidence": "osv:CVE-2019-18454",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2019-18454",
      "aliases": [
        "CVE-2019-18454"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://gitlab.com/gitlab-org/gitlab",
              "type": "GIT",
              "events": [
                {
                  "introduced": "fa49afab45259cd56ea7d1505d3ec7757770cfa9"
                },
                {
                  "last_affected": "572e09f5e8fcd54b0366836668e6685da68de22f"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:*",
                    "range": [
                      {
                        "introduced": "10.5.0"
                      },
                      {
                        "last_affected": "12.4.0"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "cpe": "cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*",
                    "range": [
                      {
                        "introduced": "10.5.0"
                      },
                      {
                        "last_affected": "12.4.0"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2019-18454.json"
          }
        }
      ],
      "modified": "2026-10-30T10:30:28.677223539Z",
      "provider": "osv",
      "references": [
        "https://about.gitlab.com/blog/2019/10/30/security-release-gitlab-12-dot-4-dot-1-released/",
        "https://about.gitlab.com/blog/categories/releases/"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2019-18454",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 437071,
  "published_at": "2019-11-26T17:15:12.5+00:00"
}