Security advisory

{
  "id": "cb72be3ee6111a5d7d2f8d63fd4f67adaddecf57d598d988fcf66064f87e010d",
  "url": "https://osv.dev/vulnerability/CVE-2021-39201",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2021-39201",
    "summary": "WordPress is a free and open-source content management system written in PHP and paired with a MySQL or MariaDB database. ### Impact The issue allows an authenticated but low-privileged user (like contributor/author) to execute XSS in the editor. This bypasses the restrictions imposed on users who do not have the permission to post `unfiltered_html`. ### Patches This has been patched in WordPress 5.8, and will be pushed to older versions via minor releases (automatic updates). It's strongly recommended that you keep auto-updates enabled to receive the fix. ### References https://wordpress.org/news/category/releases/ https://hackerone.com/reports/1142140 ### For more information If you have any questions or comments about this advisory: * Open an issue in [HackerOne](https://hackerone.com/wordpress)",
    "evidence": "osv:CVE-2021-39201",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2021-39201",
      "aliases": [
        "BIT-wordpress-2021-39201",
        "BIT-wordpress-multisite-2021-39201",
        "CVE-2021-39201",
        "GHSA-wh69-25hr-h94v"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/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": "491c67be12ca8a9fe37ae38307ba7e298c976ec3"
                },
                {
                  "fixed": "50caeb6e61ad0c49d2c7e1d6d5115047a011f590"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:wordpress:wordpress:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "5.0"
                      },
                      {
                        "fixed": "5.8"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-39201.json"
          }
        },
        {
          "ranges": [
            {
              "repo": "https://github.com/wordpress/wordpress-develop",
              "type": "GIT",
              "events": [
                {
                  "introduced": "b3bf6266acd61682bc654845f621b4426645e324"
                },
                {
                  "fixed": "4b54a6c2c9a3be775cc6dda66ed207998b068c8f"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:wordpress:wordpress:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "5.0"
                      },
                      {
                        "fixed": "5.8"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-39201.json"
          }
        }
      ],
      "modified": "2026-10-24T10:51:25.336112105Z",
      "provider": "osv",
      "references": [
        "https://github.com/WordPress/wordpress-develop/security/advisories/GHSA-wh69-25hr-h94v",
        "https://www.debian.org/security/2021/dsa-4985",
        "https://hackerone.com/reports/1142140"
      ],
      "provider_metadata": {
        "unresolved_ranges": [
          {
            "cpes": [
              "cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*",
              "cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*"
            ],
            "vendor_product": "debian:debian_linux",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "10.0"
                  },
                  {
                    "last_affected": "10.0"
                  },
                  {
                    "introduced": "11.0"
                  },
                  {
                    "last_affected": "11.0"
                  }
                ],
                "source": "CPE_STRING"
              }
            ]
          }
        ]
      }
    },
    "related_cves": [
      {
        "value": "CVE-2021-39201",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 442606,
  "published_at": "2021-09-09T22:15:09.433+00:00"
}