Security advisory

{
  "id": "0ee610ff50faab70c44500200252237a4aa6b36a0177ecaa02b9c159f1334a59",
  "url": "https://osv.dev/vulnerability/CVE-2019-18345",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2019-18345",
    "summary": "A reflected XSS issue was discovered in DAViCal through 1.1.8. It echoes the action parameter without encoding. If a user visits an attacker-supplied link, the attacker can view all data the attacked user can view, as well as perform all actions in the name of the user. If the user is an administrator, the attacker can for example add a new admin user to gain full access to the application.",
    "evidence": "osv:CVE-2019-18345",
    "products": [],
    "severity": "critical",
    "structured": {
      "id": "CVE-2019-18345",
      "aliases": [
        "CVE-2019-18345"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://gitlab.com/davical-project/davical",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "last_affected": "4af9595f4d0530268ac1289ba4ab2adb4890802e"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:davical:davical:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "last_affected": "1.1.8"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "r1.1.5",
            "r1.1.8",
            "r1.1.6",
            "debian/1.1.4-3",
            "debian/1.1.4-2",
            "r1.1.4",
            "r1.1.3.1",
            "debian/1.1.3.1-1",
            "r1.1.3",
            "debian/1.1.3-1",
            "r1.1.2",
            "r1.1.1",
            "r1.1.0",
            "r0.9.9.5",
            "r0.9.9.4",
            "r0.9.9.3",
            "r0.9.9.2",
            "r0.9.9.1",
            "r0.9.9",
            "r0.9.8.3",
            "r0.9.8.2",
            "r0.9.8.1",
            "r0.9.8",
            "r0.9.7.2",
            "r0.9.7.1",
            "r0.9.7",
            "r0.9.6.3",
            "r0.9.6.2",
            "r0.9.6",
            "r0.9.5.91",
            "r0.9.5.90",
            "r0.9.5.2",
            "r0.9.5",
            "0.9.5",
            "0.9.4.5",
            "0.9.4.3",
            "0.9.4",
            "0.9.3",
            "r0.9.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2019-18345.json"
          }
        }
      ],
      "modified": "2026-10-20T10:50:50.774205529Z",
      "provider": "osv",
      "references": [
        "https://gitlab.com/davical-project/davical/blob/master/ChangeLog",
        "https://lists.debian.org/debian-lts-announce/2019/12/msg00016.html",
        "https://seclists.org/bugtraq/2019/Dec/30",
        "https://wiki.davical.org/index.php/Main_Page",
        "https://www.davical.org/",
        "https://www.debian.org/security/2019/dsa-4582",
        "https://hackdefense.com/publications/cve-2019-18345-davical-caldav-server-vulnerability/"
      ],
      "provider_metadata": {
        "unresolved_ranges": [
          {
            "cpes": [
              "cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*",
              "cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*",
              "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*"
            ],
            "vendor_product": "debian:debian_linux",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "8.0"
                  },
                  {
                    "last_affected": "8.0"
                  },
                  {
                    "introduced": "9.0"
                  },
                  {
                    "last_affected": "9.0"
                  },
                  {
                    "introduced": "10.0"
                  },
                  {
                    "last_affected": "10.0"
                  }
                ],
                "source": "CPE_STRING"
              }
            ]
          }
        ]
      }
    },
    "related_cves": [
      {
        "value": "CVE-2019-18345",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 382239,
  "published_at": "2019-12-12T14:15:16.32+00:00"
}