captcha ok but spam also

hello

i use chronoform v5 and joomla 3.7.2
captcha is ok,
if i don't write for captach i can't send my form

but the robot can read the captcha? i receveid form in my mail box from chronoform with spam

it's a bug or now robot can read captcha?

thanks for your help
stephan

Hello waraux,
I'm not a Chrono professional, but after checking your new post, I think that the following links may help:
How can I bypass a Captcha or Anti-Spam check?
P.S: I'm just an automated service😉

thanks
but i don't want hidden captcha

my capchat work well for huamn don't write or make mistake i nthe cas of captcha, but robot can send form with captcha

so robot can read the captcha? orit's a bug with joomla 3.7.2
because befaure joomla 3.7 i any have this problem

Hi Stephan,

Human spammers can pass a Captcha. You can add serverside validation to check what has been submitted.

Bob