ammonia allows stored XSS through unsanitized SVG animate and set attributes

{
  "id": "85612f68732346968cb2fab92c6ba8d64ae840f896782034136b3da990c1f4b6",
  "url": "https://osv.dev/vulnerability/CVE-2026-102342",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "ammonia allows stored XSS through unsanitized SVG animate and set attributes",
    "summary": "ammonia is a Rust library for repairing and securing untrusted HTML. Prior to 3.3.3, 4.0.3, and 4.1.4, applications that allow the SVG animate or set elements can retain an animation whose attributeName targets href and whose value uses the javascript scheme. The sanitized SVG can therefore create a script-bearing link, and a user who clicks the link can execute attacker-controlled script in the application's origin, enabling stored cross-site scripting. This issue is fixed in versions 3.3.3, 4.0.3, and 4.1.4.",
    "evidence": "osv:CVE-2026-102342",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2026-102342",
      "aliases": [
        "CVE-2026-102342",
        "GHSA-m6mh-2hw2-555x",
        "RUSTSEC-2026-0213"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/rust-ammonia/ammonia",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "ad4ffb57b3fcf932b5a80c0f021c7ae8c76899e4"
                },
                {
                  "introduced": "6a1f85654cd90c2d131baf83267c5846ec8a7625"
                },
                {
                  "fixed": "c9e22b62ba43684449f85af131afebca2f7be54b"
                },
                {
                  "introduced": "de0297111a3a1273275b670960bcd47a0481718e"
                },
                {
                  "fixed": "fba751216ad8eb7a4e71882350016f810e4d925a"
                },
                {
                  "fixed": "9394bd81179e756cb911314deabd943f1a9c8989"
                },
                {
                  "fixed": "9e3335e2dd8ab07346ff7997f20662a3da4023f6"
                },
                {
                  "fixed": "d2ae1547f478bd84d158bc5e57f5d31437dc4d8d"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "3.3.3"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StringRangeExpression"
                  },
                  {
                    "range": [
                      {
                        "introduced": "4.0.0"
                      },
                      {
                        "fixed": "4.0.3"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StringRangeExpression"
                  },
                  {
                    "range": [
                      {
                        "introduced": "4.1.2"
                      },
                      {
                        "fixed": "4.1.4"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StringRangeExpression"
                  },
                  {
                    "range": [
                      {
                        "fixed": "9394bd81179e756cb911314deabd943f1a9c8989"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  },
                  {
                    "range": [
                      {
                        "fixed": "9e3335e2dd8ab07346ff7997f20662a3da4023f6"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  },
                  {
                    "range": [
                      {
                        "fixed": "d2ae1547f478bd84d158bc5e57f5d31437dc4d8d"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  },
                  {
                    "range": [
                      {
                        "fixed": "ad4ffb57b3fcf932b5a80c0f021c7ae8c76899e4"
                      }
                    ],
                    "source": "REFERENCES_TAG",
                    "original_tag": "v3.3.3"
                  },
                  {
                    "range": [
                      {
                        "fixed": "c9e22b62ba43684449f85af131afebca2f7be54b"
                      }
                    ],
                    "source": "REFERENCES_TAG",
                    "original_tag": "v4.0.3"
                  },
                  {
                    "range": [
                      {
                        "fixed": "fba751216ad8eb7a4e71882350016f810e4d925a"
                      }
                    ],
                    "source": "REFERENCES_TAG",
                    "original_tag": "v4.1.4"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v3.3.2",
            "v4.0.2",
            "v4.1.3",
            "v4.0.1",
            "v3.3.1",
            "v3.3.0",
            "v4.0.0",
            "v4.1.1",
            "v4.1.0",
            "v3.2.1",
            "v3.2.0",
            "v3.1.4",
            "v3.1.3",
            "v3.1.2",
            "v2.1.3",
            "v2.1.2",
            "v3.1.1",
            "v3.1.0",
            "v3.0.0",
            "v2.1.1",
            "v2.1.0",
            "v2.0.0",
            "v1.2.0",
            "v1.1.0",
            "v1.0.1",
            "v1.0.0",
            "v1.0.0-rc3",
            "v1.0.0-rc2",
            "v1.0.0-rc1",
            "v0.7.0",
            "v0.6.0",
            "v0.5.0",
            "v0.4.0",
            "v0.2.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-102342.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:52.789760956Z",
      "provider": "osv",
      "references": [
        "https://github.com/rust-ammonia/ammonia/releases/tag/v3.3.3",
        "https://github.com/rust-ammonia/ammonia/releases/tag/v4.0.3",
        "https://github.com/rust-ammonia/ammonia/releases/tag/v4.1.4",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/102xxx/CVE-2026-102342.json",
        "https://github.com/rust-ammonia/ammonia/security/advisories/GHSA-m6mh-2hw2-555x",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-102342",
        "https://github.com/rust-ammonia/ammonia/commit/9394bd81179e756cb911314deabd943f1a9c8989",
        "https://github.com/rust-ammonia/ammonia/commit/9e3335e2dd8ab07346ff7997f20662a3da4023f6",
        "https://github.com/rust-ammonia/ammonia/commit/d2ae1547f478bd84d158bc5e57f5d31437dc4d8d",
        "https://github.com/rust-ammonia/ammonia/pull/250",
        "https://github.com/rust-ammonia/ammonia/pull/251",
        "https://github.com/rust-ammonia/ammonia/pull/252"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-79"
        ],
        "cna_assigner": "GitHub_M",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/102xxx/CVE-2026-102342.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-102342",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 521821,
  "published_at": "2026-10-13T14:28:50.011+00:00"
}