CVE-2026-100370

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Source

https://cve.org/CVERecord?id=CVE-2026-100370

Import Source

https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-100370.json

JSON Data

https://api.osv.dev/v1/vulns/CVE-2026-100370

Aliases

GHSA-wcj2-r6vg-rm97

Published

2026-09-28T20:07:09Z

Modified

2026-09-30T03:45:48Z

Severity

4.7 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:N CVSS Calculator

Summary

DOMSanitizer - Incomplete data: URL Sanitization in DOMSanitizer::isDangerousUrl() Allows Base64-Encoded Payloads to Bypass href and xlink:href Validation

Details

DOMSanitizer is a DOM/SVG/MathML Sanitizer for PHP 7.3+. Prior to version 1.0.15, the isDangerousUrl() method is responsible for rejecting dangerous URL values in the href and xlink:href attributes. The weakness is that "javascript:" is rejected as a scheme, while "data:" is rejected only when the literal substring onload appears in the URL value (/^data:.*onload/i). Because data: payloads are routinely Base64-encoded, the dangerous content (

Database specific

{
    "cna_assigner":  "GitHub_M",
    "cwe_ids":  [
        "CWE-20"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/100xxx/CVE-2026-100370.json"
}

References

Affected packages

Git / github.com/rhukster/dom-sanitizer

Affected ranges

Type

GIT

Repo

https://github.com/rhukster/dom-sanitizer

Events

Introduced

Fixed

10f97807e4501d60f63987f2e76a38cdbf312dcb

Fixed

fb8f758b41134fc5fb2f563666f2330c69e31f94

Database specific

Show details

{
    "extracted_events":  [
        {
            "introduced":  "0"
        },
        {
            "fixed":  "1.0.15"
        }
    ],
    "source":  [
        "AFFECTED_FIELD",
        "REFERENCES"
    ]
}

Affected versions

Other

1.*

1.0.0

1.0.1

1.0.10

1.0.11

1.0.12

1.0.13

1.0.14

1.0.2

1.0.3

1.0.4

1.0.5

1.0.6

1.0.7

1.0.8

1.0.9

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-100370.json"