Security advisory

{
  "id": "790207d25eb34d633c6660a8c23444262807479aa36e9aa3e6f61db8cdbc1355",
  "url": "https://osv.dev/vulnerability/CVE-2018-9243",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2018-9243",
    "summary": "GitLab Community and Enterprise Editions version 8.4 up to 10.4 are vulnerable to XSS because a lack of input validation in the merge request component leads to cross site scripting (specifically, filenames in changes tabs of merge requests). This is fixed in 10.6.3, 10.5.7, and 10.4.7.",
    "evidence": "osv:CVE-2018-9243",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2018-9243",
      "aliases": [
        "CVE-2018-9243"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.0/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": "5b5777b8cf3328d27ef549c31f70993da1d1b267"
                },
                {
                  "fixed": "023315ab201e488d9a4bb3011743923e6998fc86"
                },
                {
                  "introduced": "fa49afab45259cd56ea7d1505d3ec7757770cfa9"
                },
                {
                  "fixed": "e6f48f08f76cbdc973d08669a9ec6ac40e863b62"
                },
                {
                  "introduced": "3d59f5643aa87ca1fc506bf1ad37262d8ca6b4d6"
                },
                {
                  "fixed": "8b1a92ef5835cae2d3e020e37091cd9a3868cbba"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:*",
                    "range": [
                      {
                        "introduced": "8.4"
                      },
                      {
                        "fixed": "10.4.7"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "cpe": "cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*",
                    "range": [
                      {
                        "introduced": "8.4"
                      },
                      {
                        "fixed": "10.4.7"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "cpe": "cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:*",
                    "range": [
                      {
                        "introduced": "10.5.0"
                      },
                      {
                        "fixed": "10.5.7"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "cpe": "cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*",
                    "range": [
                      {
                        "introduced": "10.5.0"
                      },
                      {
                        "fixed": "10.5.7"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "cpe": "cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:*",
                    "range": [
                      {
                        "introduced": "10.6.0"
                      },
                      {
                        "fixed": "10.6.3"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "cpe": "cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*",
                    "range": [
                      {
                        "introduced": "10.6.0"
                      },
                      {
                        "fixed": "10.6.3"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-9243.json"
          }
        }
      ],
      "modified": "2026-10-30T10:30:20.836982778Z",
      "provider": "osv",
      "references": [
        "https://about.gitlab.com/2018/04/04/security-release-gitlab-10-dot-6-dot-3-released/",
        "https://gitlab.com/gitlab-org/gitlab-ce/issues/42028"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2018-9243",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 440999,
  "published_at": "2018-04-05T14:29:00.327+00:00"
}