Captcha stopped working - Giving a 404

Question

I recently switched CF from using the system account to a restricted user account. I just noticed that my captcha images are not displaying (they are 404's), I thought I must have to give access to another folder (full access to web root and Coldfusion2016 folder given), however, I just switched it back to using a system account and for good measure rebooted the server, it's still not working.

Here is an example of an image that is giving a 404

https://www.kigso.com/CFFileServlet/_cf_captcha/_captcha_img5757781384502625729.png

This has been working fine for years so I'm a little lost as to what might be causing it

Can anybody help.

Thanks

Mark

pete_freitag · Accepted Answer

I worked with the original poster - we found that the problem was due to blocking /CFFileServlet in IIS Request Filtering. Removing the block in request filtering fixed the problem.

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Pete Freitag

Foundeo Inc.

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