Vulnerabilities in pkg:npm/jodit

{
  "schema_version" : "1.4.0",
  "id" : "GHSA-45qg-252v-3f7p",
  "modified" : "2026-07-31T19:15:57Z",
  "published" : "2026-07-31T19:15:57Z",
  "aliases" : [ "CVE-2026-65841" ],
  "summary" : "Jodit has cross-site scripting (XSS) via <script> nested in SVG that bypasses clean-html sanitization",
  "details" : "A `<script>` element placed directly inside an `<svg>` (or MathML) container was not removed by Jodit's clean-html sanitizer.\n\nThe deny/allow tag filter compared `node.nodeName` against an upper-cased tag hash, but foreign (SVG/MathML) elements preserve their original-case node names — an SVG script reports `\"script\"`, not `\"SCRIPT\"` — so the default `denyTags` list (which includes `script`) did not match it. The script therefore survived in the editor value and serialized output, where it could execute when the content was loaded back into a page or editor.\n\n### Proof of concept\n\n```html\n<svg xmlns=\"http://www.w3.org/2000/svg\" width=\"400\" height=\"400\" viewBox=\"0 0 124 124\">\n  <rect width=\"124\" height=\"124\" rx=\"24\" fill=\"#000000\"></rect>\n  <script type=\"text/javascript\">alert(document.domain);</script>\n</svg>\n```\n\nLoad the payload into the editor (e.g. via source mode) and the `<script>` is preserved in `editor.value` and executes.\n\n### Impact\n\nStored / DOM cross-site scripting. An application that persists editor output and later renders or re-opens it in Jodit can have attacker-supplied script run in a victim's (e.g. an administrator's) authenticated browser context.\n\n### Patch\n\nFixed in **4.13.6**: the deny/allow lookup now normalises the tag name to upper case before matching, so a foreign namespace can no longer bypass the filter, while `allowTags` is still honoured.\n\n### Workaround\n\nUpgrade to 4.13.6 or later. Server-side sanitization of stored HTML mitigates in the interim.\n\n### Credit\n\nReported by Roman Kis (@CrownKingClown).",
  "severity" : [ {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "npm",
      "name" : "jodit"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "4.13.6"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/xdan/jodit/security/advisories/GHSA-45qg-252v-3f7p"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/xdan/jodit/commit/49a31f451f6b686f5610022a1d4406ee85138dc5"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/xdan/jodit"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/xdan/jodit/releases/tag/4.13.6"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-80" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-07-31T19:15:57Z",
    "nvd_published_at" : null
  }
}