Security advisory

{
  "id": "91448c9495ee2c7c0637b04d1c38dc7ec1f472f0b0d124709a0272ad4133b720",
  "url": "https://osv.dev/vulnerability/CVE-2023-49967",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2023-49967",
    "summary": "Typecho v1.2.1 was discovered to be vulnerable to an XML Quadratic Blowup attack via the component /index.php/action/xmlrpc.",
    "evidence": "osv:CVE-2023-49967",
    "products": [],
    "severity": "unknown",
    "structured": {
      "id": "CVE-2023-49967",
      "aliases": [
        "CVE-2023-49967"
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/typecho/typecho",
              "type": "GIT",
              "events": [
                {
                  "introduced": "206880ba714d80bfb0638aeacb49c58b8fb1b327"
                },
                {
                  "last_affected": "65f5974e17a988dc3d71c73da151a5aef64eb600"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:typecho:typecho:1.2.1:-:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "1.2.1-NA"
                      },
                      {
                        "last_affected": "1.2.1-NA"
                      }
                    ],
                    "source": "CPE_STRING"
                  },
                  {
                    "cpe": "cpe:2.3:a:typecho:typecho:1.2.1:rc:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "1.2.1-rc"
                      },
                      {
                        "last_affected": "1.2.1-rc"
                      }
                    ],
                    "source": "CPE_STRING"
                  }
                ]
              }
            }
          ],
          "versions": [
            "1.2.1-NA",
            "1.2.1-rc"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-49967.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:37.592602995Z",
      "provider": "osv",
      "references": [
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/49xxx/CVE-2023-49967.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2023-49967",
        "https://github.com/typecho/typecho/issues/1648"
      ],
      "provider_metadata": {
        "cna_assigner": "mitre",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/49xxx/CVE-2023-49967.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2023-49967",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 504616,
  "published_at": "2023-12-07T00:00:00+00:00"
}