Properly restrict SVG href attributes - #223
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PermitScrubber reimplements Loofah's SVG local-reference restriction, which covered only `xlink:href`. SVG 2 also allows plain `href`, so `<use href="https://example.com/x.svg#p"/>` passed through intact. Restrict both via Loofah's SVG_HREF_ATTRIBUTES set (Loofah >= 2.25.2), mirroring the related Loofah fix for GHSA-9wjq-cp2p-hrgf. ref: GHSA-cj75-f6xr-r4g7
![https://example.com/x.svg#p"/>`](https://example.com/x.svg#p"/>`){kind=link}
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PermitScrubber reimplements Loofah's SVG local-reference restriction,
which covered only
xlink:href. SVG 2 also allows plainhref, so<use href="https://example.com/x.svg#p"/>passed through intact.Restrict both via Loofah's SVG_HREF_ATTRIBUTES set (Loofah >= 2.25.2),
mirroring the related Loofah fix for GHSA-9wjq-cp2p-hrgf.
ref: GHSA-cj75-f6xr-r4g7