Hi, I hope someone may be able to shed some light on an issue we are having. We are using captcha (have been for about six months) on our site after being hit by spammers through our contact form.
The form uses captcha and if the captcha is completed the contents of the form are emailed to the client. Also we have form validation so if a human is submitting the form even with the correct captcha the form cannot be submitted.
For the past month though our client has been getting blank emails from the site. This suggests that something is managing to bypass the captcha - but not filling in the form - which has validation.
Has anyone else experienced this problem? I noticed that Bruce has mentioned elsewhere that if the images are noted then a bypass can be created - but we cant understand how the captcha and form validation can both be bypassed. I need to find a solution to this problem for my client.
Any feedback would be greatly appreciated.
Many thanks in advance.
blank form submission with captcha
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weblake wrote: