Security advisory

{
  "id": "59e76f0657201bf54f579052357339315dc33ca58d65ef95d38558e761229ffb",
  "url": "https://osv.dev/vulnerability/CVE-2020-28246",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2020-28246",
    "summary": "A Server-Side Template Injection (SSTI) was discovered in Form.io 2.0.0. This leads to Remote Code Execution during deletion of the default Email template URL. NOTE: the email templating service was removed after 2020. Additionally, the vendor disputes this issue indicating this is sandboxed and only executable by admins.",
    "evidence": "osv:CVE-2020-28246",
    "products": [],
    "severity": "critical",
    "structured": {
      "id": "CVE-2020-28246",
      "aliases": [
        "CVE-2020-28246",
        "GHSA-52vj-mr2j-f8jh"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/formio/formio",
              "type": "GIT",
              "events": [
                {
                  "introduced": "03c9ed1ce020cfba34c4e5757824178e624b3454"
                },
                {
                  "last_affected": "03c9ed1ce020cfba34c4e5757824178e624b3454"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:form:form.io:2.0.0:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "2.0.0"
                      },
                      {
                        "last_affected": "2.0.0"
                      }
                    ],
                    "source": "CPE_STRING"
                  }
                ]
              }
            }
          ],
          "versions": [
            "2.0.0",
            "v2.0.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-28246.json"
          }
        }
      ],
      "modified": "2026-10-20T10:53:03.804956341Z",
      "provider": "osv",
      "references": [
        "https://github.com/formio/enterprise-release/blob/master/API-Server-Change-Log.md",
        "https://github.com/formio/formio"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2020-28246",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 384167,
  "published_at": "2022-06-02T14:15:26.7+00:00"
}