Security advisory

{
  "id": "4896dd193cad7b97ebdaf9803433b01a2639752d0ebb239b2459686f6578f664",
  "url": "https://osv.dev/vulnerability/CVE-2019-25103",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2019-25103",
    "summary": "A vulnerability has been found in simple-markdown 0.5.1 and classified as problematic. Affected by this vulnerability is an unknown functionality of the file simple-markdown.js. The manipulation leads to inefficient regular expression complexity. The attack can be launched remotely. Upgrading to version 0.5.2 is able to address this issue. The patch is named 89797fef9abb4cab2fb76a335968266a92588816. It is recommended to upgrade the affected component. The associated identifier of this vulnerability is VDB-220639.",
    "evidence": "osv:CVE-2019-25103",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2019-25103",
      "aliases": [
        "CVE-2019-25103",
        "GHSA-gpvj-gp8c-c7p2"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/ariabuckles/simple-markdown",
              "type": "GIT",
              "events": [
                {
                  "introduced": "b9c05c5fbbc03d9e10c86ccd998c6024bd4d0310"
                },
                {
                  "last_affected": "b9c05c5fbbc03d9e10c86ccd998c6024bd4d0310"
                },
                {
                  "fixed": "89797fef9abb4cab2fb76a335968266a92588816"
                },
                {
                  "fixed": "01bcc3e74e1cc095fc4a3da17687b93bfb2e0368"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:khanacademy:simple-markdown:0.5.1:*:*:*:*:node.js:*:*",
                    "range": [
                      {
                        "introduced": "0.5.1"
                      },
                      {
                        "last_affected": "0.5.1"
                      }
                    ],
                    "source": "CPE_STRING"
                  },
                  {
                    "range": [
                      {
                        "fixed": "89797fef9abb4cab2fb76a335968266a92588816"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  },
                  {
                    "range": [
                      {
                        "fixed": "01bcc3e74e1cc095fc4a3da17687b93bfb2e0368"
                      }
                    ],
                    "source": "REFERENCES_TAG",
                    "original_tag": "0.5.2"
                  }
                ]
              }
            }
          ],
          "versions": [
            "0.5.1"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2019-25103.json"
          }
        }
      ],
      "modified": "2026-10-20T10:50:54.730417366Z",
      "provider": "osv",
      "references": [
        "https://github.com/ariabuckles/simple-markdown/releases/tag/0.5.2",
        "https://vuldb.com/?ctiid.220639",
        "https://vuldb.com/?id.220639",
        "https://github.com/ariabuckles/simple-markdown/commit/89797fef9abb4cab2fb76a335968266a92588816"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2019-25103",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 382339,
  "published_at": "2023-02-12T15:15:10.61+00:00"
}