Security advisory

{
  "id": "9360b241b42e745c39a86ad8788b0335d0b6d443ea9d46ac5de6b52f5f40f0f6",
  "url": "https://osv.dev/vulnerability/CVE-2021-46253",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2021-46253",
    "summary": "A cross-site scripting (XSS) vulnerability in the Create Post function of Anchor CMS v0.12.7 allows attackers to execute arbitrary web scripts or HTML.",
    "evidence": "osv:CVE-2021-46253",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2021-46253",
      "aliases": [
        "CVE-2021-46253"
      ],
      "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/anchorcms/anchor-cms",
              "type": "GIT",
              "events": [
                {
                  "introduced": "08e8e507909ee55b588674563b8ea21646ed9425"
                },
                {
                  "last_affected": "08e8e507909ee55b588674563b8ea21646ed9425"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:anchorcms:anchor_cms:0.12.7:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0.12.7"
                      },
                      {
                        "last_affected": "0.12.7"
                      }
                    ],
                    "source": "CPE_STRING"
                  }
                ]
              }
            }
          ],
          "versions": [
            "0.12.7"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-46253.json"
          }
        }
      ],
      "modified": "2026-10-24T10:30:24.361603266Z",
      "provider": "osv",
      "references": [
        "https://anchorcms.com",
        "https://github.com/Nguyen-Trung-Kien/CVE/blob/main/CVE-2021-46253/CVE-2021-46253.pdf"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2021-46253",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 431130,
  "published_at": "2022-02-01T13:15:09.877+00:00"
}