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CVE PROGRAM SOURCE RECORD4.7 Medium

CVE-2026-40301

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

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

rhukster dom-sanitizer

  • < 1.0.10affected

References