Security advisory

{
  "id": "c55370c7b51973e49310fb0f84541dbe1e042c76605f784065ec677dd66687e3",
  "url": "https://osv.dev/vulnerability/CVE-2017-18635",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2017-18635",
    "summary": "An XSS vulnerability was discovered in noVNC before 0.6.2 in which the remote VNC server could inject arbitrary HTML into the noVNC web page via the messages propagated to the status field, such as the VNC server name.",
    "evidence": "osv:CVE-2017-18635",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2017-18635",
      "aliases": [
        "CVE-2017-18635",
        "GHSA-49rv-g7w5-m8xx"
      ],
      "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://github.com/novnc/novnc",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "e8986fa0692705fa890aed02e08b6844e535eb06"
                },
                {
                  "fixed": "6048299a138e078aed210f163111698c8c526a13"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:novnc:novnc:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "0.6.2"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "range": [
                      {
                        "fixed": "6048299a138e078aed210f163111698c8c526a13"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  },
                  {
                    "range": [
                      {
                        "fixed": "e8986fa0692705fa890aed02e08b6844e535eb06"
                      }
                    ],
                    "source": "REFERENCES_TAG",
                    "original_tag": "v0.6.2"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v0.6.1",
            "v0.6.0",
            "v0.5.1",
            "v0.5",
            "v0.4",
            "v0.3",
            "v0.2",
            "v0.1"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2017-18635.json"
          }
        }
      ],
      "modified": "2026-10-20T10:49:29.805095076Z",
      "provider": "osv",
      "references": [
        "https://access.redhat.com/errata/RHSA-2020:0754",
        "https://github.com/ShielderSec/cve-2017-18635",
        "https://github.com/novnc/noVNC/releases/tag/v0.6.2",
        "https://lists.debian.org/debian-lts-announce/2019/10/msg00004.html",
        "https://lists.debian.org/debian-lts-announce/2021/12/msg00024.html",
        "https://usn.ubuntu.com/4522-1/",
        "https://bugs.launchpad.net/horizon/+bug/1656435",
        "https://github.com/novnc/noVNC/commit/6048299a138e078aed210f163111698c8c526a13#diff-286f7dc7b881e942e97cd50c10898f03L534",
        "https://github.com/novnc/noVNC/issues/748",
        "https://www.shielder.it/blog/exploiting-an-old-novnc-xss-cve-2017-18635-in-openstack/"
      ],
      "provider_metadata": {
        "unresolved_ranges": [
          {
            "cpes": [
              "cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:*"
            ],
            "vendor_product": "canonical:ubuntu_linux",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "16.04"
                  },
                  {
                    "last_affected": "16.04"
                  }
                ],
                "source": "CPE_STRING"
              }
            ]
          },
          {
            "cpes": [
              "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"
                  }
                ],
                "source": "CPE_STRING"
              }
            ]
          },
          {
            "cpes": [
              "cpe:2.3:a:redhat:openstack:13:*:*:*:*:*:*:*"
            ],
            "vendor_product": "redhat:openstack",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "13"
                  },
                  {
                    "last_affected": "13"
                  }
                ],
                "source": "CPE_STRING"
              }
            ]
          }
        ]
      }
    },
    "related_cves": [
      {
        "value": "CVE-2017-18635",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 380465,
  "published_at": "2019-09-25T23:15:09.937+00:00"
}