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Medium

Security advisory

Type: advisorySources: OSVCVE: CVE-2017-17094

wp-includes/feed.php in WordPress before 4.9.1 does not properly restrict enclosures in RSS and Atom fields, which might allow attackers to conduct XSS attacks via a crafted URL.

Products
Not specified
Affected versions
Not specified
Fixed versions
Not specified
CVEs
CVE-2017-17094
Confirmed fixed CVEs
Not specified
Updated in this feed
1 Nov 2026, 08:50 UTC · Revision 1

Source evidence

CVE-2017-17094

core-osv · Original source

Published 2 Dec 2017, 06:29 UTC

wp-includes/feed.php in WordPress before 4.9.1 does not properly restrict enclosures in RSS and Atom fields, which might allow attackers to conduct XSS attacks via a crafted URL.

osv:CVE-2017-17094
Complete source record
{
  "id": "ca1c12a579f11a929ecbc197a81d7775e1ecaecad155273cf0fe3b1a7de31a4b",
  "url": "https://osv.dev/vulnerability/CVE-2017-17094",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2017-17094",
    "summary": "wp-includes/feed.php in WordPress before 4.9.1 does not properly restrict enclosures in RSS and Atom fields, which might allow attackers to conduct XSS attacks via a crafted URL.",
    "evidence": "osv:CVE-2017-17094",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2017-17094",
      "aliases": [
        "CVE-2017-17094"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/wordpress/wordpress",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "fe24185f48a5fd27294c1251de7047c54fe178ca"
                },
                {
                  "fixed": "f1de7e42df29395c3314bf85bff3d1f4f90541de"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:wordpress:wordpress:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "4.9.1"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "range": [
                      {
                        "fixed": "f1de7e42df29395c3314bf85bff3d1f4f90541de"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
              }
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2017-17094.json"
          }
        },
        {
          "ranges": [
            {
              "repo": "https://github.com/wordpress/wordpress-develop",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "4cffcde01100c98f81ade87865e51ff920e6a027"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:wordpress:wordpress:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "4.9.1"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2017-17094.json"
          }
        }
      ],
      "modified": "2026-10-24T10:50:28.758929147Z",
      "provider": "osv",
      "references": [
        "https://lists.debian.org/debian-lts-announce/2017/12/msg00019.html",
        "https://wordpress.org/news/2017/11/wordpress-4-9-1-security-and-maintenance-release/",
        "https://www.debian.org/security/2018/dsa-4090",
        "https://codex.wordpress.org/Version_4.9.1",
        "https://github.com/WordPress/WordPress/commit/f1de7e42df29395c3314bf85bff3d1f4f90541de",
        "https://wpvulndb.com/vulnerabilities/8967"
      ],
      "provider_metadata": {
        "unresolved_ranges": [
          {
            "cpes": [
              "cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*",
              "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": "7.0"
                  },
                  {
                    "last_affected": "7.0"
                  },
                  {
                    "introduced": "8.0"
                  },
                  {
                    "last_affected": "8.0"
                  },
                  {
                    "introduced": "9.0"
                  },
                  {
                    "last_affected": "9.0"
                  }
                ],
                "source": "CPE_STRING"
              }
            ]
          }
        ]
      }
    },
    "related_cves": [
      {
        "value": "CVE-2017-17094",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 442206,
  "published_at": "2017-12-02T06:29:00.347+00:00"
}