Security advisory

{
  "id": "2679b6ff16069f08d69d0335f2f67036ca697481945a84d8a1bd53dfe38eb70f",
  "url": "https://osv.dev/vulnerability/CVE-2024-21501",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2024-21501",
    "summary": "Versions of the package sanitize-html before 2.12.1 are vulnerable to Information Exposure when used on the backend and with the style attribute allowed, allowing enumeration of files in the system (including project dependencies). An attacker could exploit this vulnerability to gather details about the file system structure and dependencies of the targeted server.",
    "evidence": "osv:CVE-2024-21501",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2024-21501",
      "aliases": [
        "CVE-2024-21501",
        "GHSA-rm97-x556-q36h"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:P"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/apostrophecms/apostrophe",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "4a7d7dd099b41c909f2faac056d34cf027515079"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:apostrophecms:sanitize-html:*:*:*:*:*:node.js:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "2.12.1"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            },
            {
              "repo": "https://github.com/apostrophecms/sanitize-html",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "4a7d7dd099b41c909f2faac056d34cf027515079"
                },
                {
                  "fixed": "c5dbdf77fe8b836d3bf4554ea39edb45281ec0b4"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:apostrophecms:sanitize-html:*:*:*:*:*:node.js:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "2.12.1"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "range": [
                      {
                        "fixed": "c5dbdf77fe8b836d3bf4554ea39edb45281ec0b4"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
              }
            }
          ],
          "versions": [
            "2.8.1",
            "2.7.3",
            "2.7.2",
            "2.7.1",
            "2.5.3",
            "2.3.3",
            "1.27.4",
            "1.22.0",
            "1.21.1",
            "1.21.0",
            "1.20.0",
            "1.19.3",
            "1.19.2",
            "1.19.1",
            "1.19.0",
            "1.18.5",
            "1.18.4",
            "1.18.3",
            "1.18.2",
            "1.11.4",
            "1.11.1",
            "1.11.0",
            "1.10.1",
            "v1.9.0",
            "v1.8.0",
            "v1.7.2",
            "v1.7.1",
            "v1.7.0",
            "v1.5.2",
            "2.11.0",
            "2.10.0",
            "2.9.0",
            "2.8.0",
            "2.7.0",
            "2.6.1",
            "2.6.0",
            "2.5.2",
            "2.5.1",
            "2.5.0",
            "2.4.0",
            "2.3.2",
            "2.3.1",
            "2.3.0",
            "2.2.0",
            "2.1.2",
            "2.1.1",
            "2.1.0",
            "2.0.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-21501.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:49.875266853Z",
      "provider": "osv",
      "references": [
        "https://gist.github.com/Slonser/8b4d061abe6ee1b2e10c7242987674cf",
        "https://github.com/apostrophecms/apostrophe/discussions/4436",
        "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4EB5JPYRCTS64EA5AMV3INHDPI6I4AW7/",
        "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/P4I5X6V3LYUNBMZ5YOW4BV427TH3IK4S/",
        "https://security.snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-6276557",
        "https://security.snyk.io/vuln/SNYK-JS-SANITIZEHTML-6256334",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/21xxx/CVE-2024-21501.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2024-21501",
        "https://github.com/apostrophecms/sanitize-html/commit/c5dbdf77fe8b836d3bf4554ea39edb45281ec0b4",
        "https://github.com/apostrophecms/sanitize-html/pull/650"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-200"
        ],
        "cna_assigner": "snyk",
        "unresolved_ranges": [
          {
            "extracted_events": [
              {
                "range": [
                  {
                    "fixed": "*"
                  }
                ],
                "source": "AFFECTED_FIELD",
                "strategy": "StandardRange"
              }
            ]
          }
        ],
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/21xxx/CVE-2024-21501.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2024-21501",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 518523,
  "published_at": "2024-02-24T05:00:02.731+00:00"
}