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authorJoey Hess <joey@gnu.kitenet.net>2010-03-12 14:29:54 -0500
committerJoey Hess <joey@gnu.kitenet.net>2010-03-12 14:29:54 -0500
commit556181d417e3461de56c43445ec9b2b0aefc7141 (patch)
tree04e013468fba7bc97fe37c435c529a206b75c22f /doc/todo/svg.mdwn
parent3fd202db7b3b3ea4eb8fc7ecda8db38f8ed788af (diff)
downloadikiwiki-556181d417e3461de56c43445ec9b2b0aefc7141.tar
ikiwiki-556181d417e3461de56c43445ec9b2b0aefc7141.tar.gz
data:image/svg is a security hole as javascript can presumably be inserted
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diff --git a/doc/todo/svg.mdwn b/doc/todo/svg.mdwn
index 2099751e3..274ebf3e3 100644
--- a/doc/todo/svg.mdwn
+++ b/doc/todo/svg.mdwn
@@ -58,6 +58,8 @@ in the trunk if other people think it's useful.
[htmlscrubber.pm]:http://xbeta.org/gitweb/?p=xbeta/ikiwiki.git;a=blob;f=IkiWiki/Plugin/htmlscrubber.pm;h=3c0ddc8f25bd8cb863634a9d54b40e299e60f7df;hb=fe333c8e5b4a5f374a059596ee698dacd755182d
[diff]: http://xbeta.org/gitweb/?p=xbeta/ikiwiki.git;a=blobdiff;f=IkiWiki/Plugin/htmlscrubber.pm;h=3c0ddc8f25bd8cb863634a9d54b40e299e60f7df;hp=3bdaccea119ec0e1b289a0da2f6d90e2219b8d66;hb=fe333c8e5b4a5f374a059596ee698dacd755182d;hpb=be0b4f603f918444b906e42825908ddac78b7073
+> Unfortuantly these links are broken. --[[Joey]]
+
* * *
Actually, there's a way to embed SVG into MarkDown sources using the [data: URI scheme][rfc2397], [like this](data:image/svg+xml;base64,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).
@@ -65,3 +67,11 @@ Of course, this way to display an image one needs to click a link, but it may be
&mdash;&nbsp;[[Ivan_Shmakov]], 2010-03-12Z.
[rfc2397]: http://tools.ietf.org/html/rfc2397
+
+> You can do the same with img src actually.
+>
+> If svg markup allows unsafe elements (ie, javascript),
+> which it appears to,
+> then this is a security hole, and the htmlscrubber
+> needs to lock it down more. Darn, now I have to spend my afternoon making
+> security releases! --[[Joey]]