Support » Fixing WordPress » Strange 403 or 404 Forbidden Errors With WordPress

  • Resolved Tim_Olaguna


    I sent the following note off to my ISP a short while ago, but was wondering if anyone else had this problem and worked out a solution:

    After three days of repeated efforts I am very frustrated with the way WordPress does not work consistently on my (ISP’s name here) account. I have repeatedly tried to post the same short article only to have it fail each time. Every time I try to save or post the article using the WordPress internal editor I receive this frustrating, incomprehensible, and incompetent message:

    “You don’t have permission to access /wp-admin/post.php on this server.”
    “Additionally, a 404 Not Found error was encountered while trying to use an ErrorDocument to handle the request.”
    “Apache/1.3.41 Server at Port 80”

    I get this message:

    • When trying to post only this one particular fairly short message. (See text of message below.)
    • When trying to post the message to my installed version of WordPress 2.8.6. That version was installed for me on my account via the Fantastico utility.

    Adding to my frustration, I do NOT get the above error message:

    • With either of two previously successful postings and one “About” page on the blog supported by this WordPress installation. The blog can be accessed here: .
    • When I attempted to post the same identical message on a supported blog accessible here: .

    Even though I clearly can use my account to post my blog articles successfully I prefer to use my WordPress installation on my ISP’s account. In the long run the latter provides me with greater flexibility and the possibility of gaining revenue.

    Here is the title and text of the message I have been trying to post:

    (Beginning of post.)

    The Known Universe by AMNH

    That earlier bit by the Monty Python folks was fun and gives a general idea of how big ‘everything out there is’ and how small a part of it we are. Here is another view based on the latest information available. Put together by the American Museum of Natural History, I find it very dramatic. I wanted to share it with you.

    The Known Universe takes viewers from the Himalayas through our atmosphere and the inky black of space to the afterglow of the Big Bang. Every star, planet, and quasar seen in the film is possible because of the world’s most complete four-dimensional map of the universe, the Digital Universe Atlas that is maintained and updated by astrophysicists at the American Museum of Natural History. This new film updates an earlier version, was created by the Museum, is part of an exhibition called Visions of the Cosmos: From the Milky Ocean to an Evolving Universe, and is showing at the Rubin Museum of Art in Manhattan through May 2010.

    Here’s the video. You might need to wait a bit for it to fully load:


    For more information visit

    (End of post.)

    I cannot figure out why I can post some articles but not others using WordPress on my ISP’s account. Your help in resolving my problems here will be greatly appreciated.

Viewing 5 replies - 1 through 5 (of 5 total)
  • I really don’t know what is the problem, but on cheking your site here:

    it gave me this: Sorry, I am unable to validate this document because on line 77 it contained one or more bytes that I cannot interpret as utf-8 (in other words, the bytes found are not valid values in the specified Character Encoding). Please check both the content of the file and the character encoding indication.

    The error was: utf8 “\xD1” does not map to Unicode

    Don’t know what that means either and maybe it is not related.
    Line 77 is hard to find because that’s line 77 of all the php called in a row, startingwith your wp-config.php and then your theme’s functions.php and then your index.php.

    Sorry, no real help but since I saw it, I wanted to report it.

    Well, thanks for letting me know. I haven’t a clue about what it is, its seriousness, how it bears on my problem (if at all), or what to do about it. But thanks for taking the time to check it out and write to me.

    I’m a writer. Certainly not a php programmer. If there’s a problem with the php code that’s on’s head. We must be free to just write and post without worrying about how the engine is tuned. If it doesn’t meet our needs, or becomes too much trouble to use, we’ll just found another venue and dump the turkey.

    Hi Tim, love your observations, but I guess you learned to check your tyre-pressure once when using cars.
    How did you do the video with your hosted site? With an embed under the html editor?
    Also I notice a v in the link after the http: httpv:// (allthough I see you have more posts with embedded video)

    Why don’t you try re-uploading the folders wp-admin and wp-include? Could be a broken file. Just these, nothing else!

    Hooray! This problem is solved!

    The solution was provided as follows:

    Suggestion from katrina1 at It sounds like you may be hitting a mod_security error. Add the following to .htaccess:

    <IfModule mod_security.c>
    SecFilterEngine Off
    SecFilterScanPOST Off

    I did as suggested. Afterward had no problem posting my post. And the video works very well when accessed.

    Hi, same think happened to my site linking from facebook. I resolved it putting this in mod_security config file:

    <IfModule mod_security.c>
    SecRule SERVER_NAME “facebook\.com$” phase:1,nolog,allow,ctl:ruleEngine=off

Viewing 5 replies - 1 through 5 (of 5 total)
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