Security advisory

{
  "id": "086cab29bb9f358f1645b44d2f6379c142c3c07e89d94b3130a5db3bc0e3da4c",
  "url": "https://osv.dev/vulnerability/CVE-2021-40658",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2021-40658",
    "summary": "Textpattern 4.8.7 is affected by a HTML injection vulnerability through “Content>Write>Body”.",
    "evidence": "osv:CVE-2021-40658",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2021-40658",
      "aliases": [
        "CVE-2021-40658"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/textpattern/textpattern",
              "type": "GIT",
              "events": [
                {
                  "introduced": "8531fe45f8eb39d0497b265c18260af11beb361e"
                },
                {
                  "last_affected": "8531fe45f8eb39d0497b265c18260af11beb361e"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:textpattern:textpattern:4.8.7:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "4.8.7"
                      },
                      {
                        "last_affected": "4.8.7"
                      }
                    ],
                    "source": "CPE_STRING"
                  }
                ]
              }
            }
          ],
          "versions": [
            "4.8.7"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-40658.json"
          }
        }
      ],
      "modified": "2026-10-24T10:30:31.598225209Z",
      "provider": "osv",
      "references": [
        "https://tanmay26.medium.com/textpattern-4-8-7-is-affected-by-html-injection-in-the-body-parameter-1a7be2441b70"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2021-40658",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 432845,
  "published_at": "2022-06-14T11:15:10.527+00:00"
}