CVE-2026-0540

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Source
https://cve.org/CVERecord?id=CVE-2026-0540
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-0540.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2026-0540
Aliases
Downstream
Related
Published
2026-03-03T17:26:06.621Z
Modified
2026-06-15T12:22:17.690683881Z
Severity
  • 5.3 (Medium) CVSS_V4 - 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 CVSS Calculator
Summary
DOMPurify XSS via Missing Rawtext Elements in SAFE_FOR_XML
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 SAFEFORXML 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.

Database specific 
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/0xxx/CVE-2026-0540.json",
    "cna_assigner": "VulnCheck",
    "cwe_ids": [
        "CWE-79"
    ]
}
References

Affected packages

Git / github.com/cure53/dompurify

Affected ranges

Type
GIT
Repo
https://github.com/cure53/dompurify
Events
Introduced
e1ddfc7b5e6d6599c369f826699b0204e2c691b9
Introduced
3fe78d7501103832166613bb1452985dd4674008
Fixed
302b51de22535cc90235472c52e3401bedd46f80
Database specific 
{
    "extracted_events": [
        {
            "introduced": "2.5.3"
        },
        {
            "last_affected": "2.5.8"
        },
        {
            "introduced": "3.1.3"
        },
        {
            "last_affected": "3.3.1"
        }
    ],
    "cpe": "cpe:2.3:a:cure53:dompurify:*:*:*:*:*:*:*:*",
    "source": [
        "CPE_RANGE",
        "REFERENCES"
    ]
}

Affected versions

3.*
3.1.3
3.2.3

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-0540.json"