{
  "threat_severity" : "Moderate",
  "public_date" : "2026-03-03T17:26:06Z",
  "bugzilla" : {
    "description" : "DOMPurify: DOMPurify: Cross-site scripting vulnerability",
    "id" : "2444135",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=2444135"
  },
  "cvss3" : {
    "cvss3_base_score" : "6.1",
    "cvss3_scoring_vector" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
    "status" : "draft"
  },
  "cwe" : "CWE-79",
  "details" : [ "DOMPurify 3.1.3 through 3.3.1 and 2.5.3 through 2.5.8, fixed in commit 2726c74, contain a cross-site scripting vulnerability that allows attackers to bypass attribute sanitization by exploiting five missing rawtext elements (noscript, xmp, noembed, noframes, iframe) in the SAFE_FOR_XML regex. Attackers can include payloads like </noscript><img src=x onerror=alert(1)> in attribute values to execute JavaScript when sanitized output is placed inside these unprotected rawtext contexts.", "A cross site scripting flaw has been discovered in the DOMPurify npm library. This flaw allows attackers to bypass attribute sanitization by exploiting five missing rawtext elements (noscript, xmp, noembed, noframes, iframe) in the SAFE_FOR_XML regex. Attackers can include payloads like </noscript><img src=x onerror=alert(1)> in attribute values to execute JavaScript when sanitized output is placed inside these unprotected rawtext contexts." ],
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  "references" : [ "https://www.cve.org/CVERecord?id=CVE-2026-0540\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-0540\nhttps://github.com/cure53/DOMPurify\nhttps://github.com/cure53/DOMPurify/commit/fca0a938b4261ddc9c0293a289935a9029c049f5\nhttps://www.vulncheck.com/advisories/dompurify-xss-via-missing-rawtext-elements-in-safeforxml" ],
  "name" : "CVE-2026-0540",
  "mitigation" : {
    "value" : "Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.",
    "lang" : "en:us"
  },
  "csaw" : false
}