Security advisory

{
  "id": "b8f58c134440c488547b853d73efb6a12aa36edfbbc148f4d4900f49b632f4f2",
  "url": "https://osv.dev/vulnerability/CVE-2023-22621",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2023-22621",
    "summary": "Strapi through 4.5.5 allows authenticated Server-Side Template Injection (SSTI) that can be exploited to execute arbitrary code on the server. A remote attacker with access to the Strapi admin panel can inject a crafted payload that executes code on the server into an email template that bypasses the validation checks that should prevent code execution.",
    "evidence": "osv:CVE-2023-22621",
    "products": [],
    "severity": "critical",
    "structured": {
      "id": "CVE-2023-22621",
      "aliases": [
        "CVE-2023-22621",
        "GHSA-2h87-4q2w-v4hf"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/strapi/strapi",
              "type": "GIT",
              "events": [
                {
                  "introduced": "6bb7a7f198b13b0780547285d4214704ce991c23"
                },
                {
                  "fixed": "d36609ff26fb4e00a41a7e2b657f16c7466203fe"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "last_affected": "4.5.5"
                      }
                    ],
                    "source": "DESCRIPTION"
                  },
                  {
                    "cpe": "cpe:2.3:a:strapi:strapi:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "3.0.0"
                      },
                      {
                        "fixed": "4.5.6"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-22621.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:22.272712612Z",
      "provider": "osv",
      "references": [
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/22xxx/CVE-2023-22621.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2023-22621",
        "https://github.com/strapi/strapi/releases",
        "https://strapi.io/blog/security-disclosure-of-vulnerabilities-cve",
        "https://www.ghostccamm.com/blog/multi_strapi_vulns/"
      ],
      "provider_metadata": {
        "cna_assigner": "mitre",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/22xxx/CVE-2023-22621.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2023-22621",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 488588,
  "published_at": "2023-04-19T00:00:00+00:00"
}