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Eduardo Habkost raisama.net

diary / 4a7d3d609129a9296bf7ac0608c2097

Qui 27 Mar 2008
14h33min
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4a7d3d609129a9296bf7ac0608c2097

Can somebody explain to me where this hex string comes from?

It has lots of matches on Google. Most of them are on blog comments. But they appear on valid comments, so I don’t think it is some marker string being used by spam bots.

2 comentários

Por Ano em Sex 28 Mar 2008 09:06:26.

interesting… =4a7d3d609129a9296bf7ac0608c2097

Por Eduardo Habkost em Sex 28 Mar 2008 10:17:46.

I think I have found the culprit: PHP Markdown. It uses some tricks using md5 hashes, including some handling of html tags.

Look:

$ echo -n '</p>' | md5sum
04a7d3d609129a9296bf7ac0608c2097  -

I don’t know if the bug is present on recent versions of the Wordpress Markdown plugin, however.

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