Ammonia incorrectly handles embedded SVG and MathML leading to mutation XSS after removal
Affected versions of this crate did not correctly strip namespace-incompatible tags in certain situations, causing it to incorrectly account for differences between HTML, SVG, and MathML. This vulnerability only has an effect when the svg or math tag is allowed, because it relies on a tag being parsed as html during the cleaning process, but serialized in a way that causes in to be parsed as xml by the browser. …