TrustedTypes: SVGAnimatedString.baseVal#42502
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hamishwillee merged 2 commits intomdn:mainfrom Jan 6, 2026
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hamishwillee
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Dec 23, 2025
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(comment last updated: 2025-12-23 05:59:14) |
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sideshowbarker
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Co-authored-by: sideshowbarker <mike@w3.org>
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Thanks for the review @sideshowbarker ! |
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The
SVGAnimatedStringcan represent the base and animated values of various elements in SVG.In the context of
SVGScriptElement.hrefit can be used to set thebaseValof the script. This is an injection sink.Technically right place for all the information is
SVGAnimatedString.baseValsince that defines the property, but that can be used to reflect numerous attributes, and only one is a problem case. So what I have done is put TT info in theSVGScriptElement.href. ForSVGAnimatedString.baseValI have put the disclaimer and explanation, but I link to the other doc for security considerations and the example.Related docs work tracked in #41507