Use of the word “union” in posts

  • Resolved kateshortforbob

    (@kateshortforbob)


    17 years, 8 months ago

    I’m pretty sure this is a problem with my host, but I wanted to check/mention it here anyway.

    Last night, I wrote a post, and received a repeated 500 Internal Server Error when trying to publish. After testing, I worked out that it had to do with the content of the post, and after copy-pasting very small sections of text, narrowed the problem down to posting the word “reunion”, presumably because of the SQL UNION statement. I’ve checked other WordPress blogs, and they seem to have no problems, so, as I say, I think it’s my host’s issue. Just wondered if anyone else had encountered something like this?

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  • thats mod_security

    you can do a few things…

    you can disable it entirely in your wp-admin area
    you can disable it on a page by page basis
    you can use your own rules, which will trump the default ones

    Thread Starter kateshortforbob

    (@kateshortforbob)

    Thanks for the information, whooami.

    In case anyone else has this problem, I found a comment in this post which pointed to adding “SecFilterEngine off” to .htaccess which solved my problem. If you don’t want to leave mod_security off, you can remove the line after the post is published, and the post appears to be preserved. This article and this wiki page give more information selectively disabling mod_security. Another common error message produced by this problem is: “Error 412: Precondition failed”

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