X-Git-Url: https://sipb.mit.edu/gitweb.cgi/ikiwiki.git/blobdiff_plain/8202cfe19e65867d7e41339944a8d7ca6daffa22..243b0dd082cf4b66dfef55b2c9b459109bee7398:/doc/security.mdwn

diff --git a/doc/security.mdwn b/doc/security.mdwn
index 939d65d01..21aef316b 100644
--- a/doc/security.mdwn
+++ b/doc/security.mdwn
@@ -417,3 +417,25 @@ attack.
 intrigeri discovered this problem on 12 Nov 2008 and a patch put in place
 later that day, in version 2.70. The fix was backported to testing as version
 2.53.3, and to stable as version 1.33.7.
+
+## Insufficient blacklisting in teximg plugin
+
+Josh Triplett discovered on 28 Aug 2009 that the teximg plugin's
+blacklisting of insecure TeX commands was insufficient; it could be
+bypassed and used to read arbitrary files. This was fixed by
+enabling TeX configuration options that disallow unsafe TeX commands.
+The fix was released on 30 Aug 2009 in version 3.1415926, and was
+backported to stable in version 2.53.4. If you use the teximg plugin,
+I recommend upgrading. ([[!cve CVE-2009-2944]])
+
+## javascript insertion via svg uris
+
+Ivan Shmakov pointed out that the htmlscrubber allowed `data:image/*` urls,
+including `data:image/svg+xml`. But svg can contain javascript, so that is
+unsafe.
+
+This hole was discovered on 12 March 2010 and fixed the same day
+with the release of ikiwiki 3.20100312.
+A fix was also backported to Debian etch, as version 2.53.5. I recommend
+upgrading to one of these versions if your wiki can be edited by third
+parties.