Allow SVG transfer function attributes #987
Merged
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Summary
This PR adds the following SVG transfer function (
<feFunc*>
) attributes to the SVG allow list:amplitude
exponent
intercept
slope
tablevalues
Afaik, these are all of the attributes that are available on SVG component transfer functions (
offset
is already on the allow list).These attributes are used to control how colours are processed inside an
<feComponentTransfer>
element. All of these attributes only accept numeric values, so I don't believe they can be used to trigger scripts or other malicious behaviours. Please let me know if I'm wrong there.Thanks again!
Background & Context
This should fix #984.
References