Security advisory

{
  "id": "d829b1681184ac9a5136b8de8b39d4966f17314c5b30ed7f99f439d4483913f7",
  "url": "https://osv.dev/vulnerability/CVE-2019-19999",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2019-19999",
    "summary": "Halo before 1.2.0-beta.1 allows Server Side Template Injection (SSTI) because TemplateClassResolver.SAFER_RESOLVER is not used in the FreeMarker configuration.",
    "evidence": "osv:CVE-2019-19999",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2019-19999",
      "aliases": [
        "CVE-2019-19999"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/halo-dev/halo",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "last_affected": "2730d4df616cc0fc8b2d71cc665c091fde6921e9"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:halo:halo:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "last_affected": "1.1.1"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v1.1.1",
            "v1.1.0",
            "v1.0.3",
            "v1.0.2",
            "v1.0.1",
            "v1.0.0",
            "v0.4.1",
            "v0.4.0",
            "v0.3.0",
            "v0.2.1",
            "v0.2.0",
            "v0.1.1",
            "v0.1",
            "v0.0.9",
            "v0.0.8",
            "v0.0.7",
            "v0.0.6",
            "v0.0.5",
            "v0.0.4",
            "v0.0.3",
            "v0.0.2",
            "v0.0.1"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2019-19999.json"
          }
        }
      ],
      "modified": "2026-10-20T10:50:52.513817731Z",
      "provider": "osv",
      "references": [
        "https://github.com/halo-dev/halo/compare/v1.1.3-beta.2...v1.2.0-beta.1",
        "https://github.com/halo-dev/halo/issues/419",
        "https://github.com/halo-dev/halo/issues/440"
      ],
      "provider_metadata": {
        "unresolved_ranges": [
          {
            "cpes": [
              "cpe:2.3:a:halo:halo:1.1.3:beta1:*:*:*:*:*:*",
              "cpe:2.3:a:halo:halo:1.1.3:beta2:*:*:*:*:*:*",
              "cpe:2.3:a:halo:halo:1.2.0:beta1:*:*:*:*:*:*"
            ],
            "vendor_product": "halo:halo",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "1.1.3-beta1"
                  },
                  {
                    "last_affected": "1.1.3-beta1"
                  },
                  {
                    "introduced": "1.1.3-beta2"
                  },
                  {
                    "last_affected": "1.1.3-beta2"
                  },
                  {
                    "introduced": "1.2.0-beta1"
                  },
                  {
                    "last_affected": "1.2.0-beta1"
                  }
                ],
                "source": "CPE_STRING"
              }
            ]
          }
        ]
      }
    },
    "related_cves": [
      {
        "value": "CVE-2019-19999",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 382294,
  "published_at": "2019-12-26T04:15:10.923+00:00"
}