Medium 4.7Published Apr 17, 2026

CVE-2026-40301rhukster/dom-sanitizer: SVG <style> tag allows CSS injection via unfiltered url() and @import directives

Updated under an hour ago (Oct 27, 2026, 3:40 AM ET)

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Every CVE for rhukster dom-sanitizer

Exploited in the last 30 days

DOMSanitizer is a DOM/SVG/MathML Sanitizer for PHP 7.3+. Prior to version 1.0.10, DOMSanitizer::sanitize() allows <style> elements in SVG content but never inspects their text content. CSS url() references and @import rules pass through unfiltered, causing the browser to issue HTTP requests to attacker-controlled hosts when the sanitized SVG is rendered. Version 1.0.10 fixes the issue.

CVSS: 4.7 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:N
Weakness (CWE): CWE-79
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: GitHub_M
NVD analysis: Deferred
Record last updated: Apr 20, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

rhukster dom-sanitizer rhukster:dom_sanitizer (from the name)	before 1.0.10	CNA record

References

References

https://github.com/rhukster/dom-sanitizer/security/advisories/GHSA-93vf-569f-22cq	x-refsource-confirm
https://github.com/rhukster/dom-sanitizer/commit/49a98046b708a4c92f754f5b0ef1720bb85142e2	x-refsource-misc
https://github.com/rhukster/dom-sanitizer/releases/tag/1.0.10	x-refsource-misc

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.