Security advisory

{
  "id": "d19a48c14d9722ad7809afc8896d05ed99a0d6a4e545805fab117118417320f0",
  "url": "https://osv.dev/vulnerability/CVE-2021-46871",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2021-46871",
    "summary": "tag.ex in Phoenix Phoenix.HTML (aka phoenix_html) before 3.0.4 allows XSS in HEEx class attributes.",
    "evidence": "osv:CVE-2021-46871",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2021-46871",
      "aliases": [
        "CVE-2021-46871",
        "GHSA-5g2h-9x5v-5h3x",
        "GHSA-j3gg-r6gp-95q2"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/phoenixframework/phoenix_html",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "926a7e9da40df9b9da4eaec57a97641fd56729c2"
                },
                {
                  "fixed": "62a0139fb716bcdce697f6221244bd81d321d620"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:phoenixframework:phoenix_html:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "3.0.4"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "range": [
                      {
                        "fixed": "62a0139fb716bcdce697f6221244bd81d321d620"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v3.0.3",
            "v3.0.2",
            "v3.0.0",
            "v2.14.2",
            "v2.14.1",
            "v.2.14.1",
            "v2.14.0",
            "v2.13.3",
            "v2.13.2",
            "v2.13.1",
            "v2.13.0",
            "v2.12.0",
            "v2.11.2",
            "v2.11.1",
            "v2.11.0",
            "v2.10.4",
            "v2.10.2",
            "v2.10.1",
            "v2.10.0",
            "v2.9.3",
            "v2.9.2",
            "v2.9.1",
            "v2.9.0",
            "v2.8.0",
            "v2.7.0",
            "v2.6.0",
            "v2.5.1",
            "v2.5.0",
            "v2.4.0",
            "v2.3.1",
            "v2.3.0",
            "v2.2.1",
            "v2.2.0",
            "v2.1.2",
            "v2.1.0",
            "v2.0.0",
            "v1.4.0",
            "v1.3.0",
            "v1.2.1",
            "v1.2.0",
            "v1.1.0",
            "v1.0.1",
            "v1.0.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-46871.json"
          }
        }
      ],
      "modified": "2026-10-20T10:55:11.818072971Z",
      "provider": "osv",
      "references": [
        "https://github.com/advisories/GHSA-j3gg-r6gp-95q2",
        "https://github.com/phoenixframework/phoenix_html/commit/62a0139fb716bcdce697f6221244bd81d321d620"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2021-46871",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 387057,
  "published_at": "2023-01-10T06:15:09.87+00:00"
}