Security advisory

{
  "id": "71bd5a358ae9ba141ffbaccdbe6d520401ac8e40c7747e23d8b519c247474bb8",
  "url": "https://osv.dev/vulnerability/CVE-2018-8815",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2018-8815",
    "summary": "Cross-site scripting (XSS) vulnerability in the gallery function in Alkacon OpenCMS 10.5.3 allows remote attackers to inject arbitrary web script or HTML via a malicious SVG image.",
    "evidence": "osv:CVE-2018-8815",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2018-8815",
      "aliases": [
        "CVE-2018-8815"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/alkacon/opencms-core",
              "type": "GIT",
              "events": [
                {
                  "introduced": "d5e099d25ca03aebc3df995016f9ebcf40e35df8"
                },
                {
                  "last_affected": "d5e099d25ca03aebc3df995016f9ebcf40e35df8"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:alkacon:opencms:10.5.3:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "10.5.3"
                      },
                      {
                        "last_affected": "10.5.3"
                      }
                    ],
                    "source": "CPE_STRING"
                  }
                ]
              }
            }
          ],
          "versions": [
            "10.5.3",
            "build_10_5_3"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-8815.json"
          }
        }
      ],
      "modified": "2026-10-20T10:50:36.207494502Z",
      "provider": "osv",
      "references": [
        "https://github.com/alkacon/opencms-core/issues/587",
        "https://www.exploit-db.com/exploits/44392/"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2018-8815",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 381899,
  "published_at": "2018-03-20T07:29:00.307+00:00"
}