CVE-2026-40301

MEDIUM

4.7

Description

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.

CVE Details

CVSS v3.1 Score4.7

SeverityMEDIUM

CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:N

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredNONE

User InteractionREQUIRED

Published4/17/2026

Last Modified4/20/2026

Sourcenvd

Honeypot Sightings0

Weaknesses (CWE)

CWE-79

References

https://github.com/rhukster/dom-sanitizer/commit/49a98046b708a4c92f754f5b0ef1720bb85142e2(security-advisories@github.com)

https://github.com/rhukster/dom-sanitizer/releases/tag/1.0.10(security-advisories@github.com)

https://github.com/rhukster/dom-sanitizer/security/advisories/GHSA-93vf-569f-22cq(security-advisories@github.com)

IOC Correlations

No correlations recorded

This product uses data from the NVD API but is not endorsed or certified by the NVD.