Securimage PHP CAPTCHA
Securimage is an open-source free PHP CAPTCHA script for generating complex images and CAPTCHA codes to protect forms from spam and abuse. It can be easily added into existing forms on your website to provide protection from spam bots. It can run on most any webserver as long as you have PHP installed, and GD support within PHP. Securimage does everything from generating the CAPTCHA images to validating the typed code. Audible codes can be streamed to the browser with Flash for the vision impaired.Visit publisher site: Securimage PHP CAPTCHA
License & Pricing Information
- License Type:
- $0.00 USD
- Additional Info:
Displaying 1-5 out of 6 reviews
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The visual aspect of the CAPTCHA is really top class. However, the Audio has not been correctly implemented and has suffered for some time from a known Authentication Bypass: http://www.idontplaydarts.com/2011/05/exploit-phpcaptcha-securimage/ The bottom line is that if you want to be secure you need to disable the audio component of the CAPTCHA.
Bottom Line: No, I would not recommend this to a friend
Fairly easy to set up and very effective so far - it has completely stopped spam from my web forms (unlike other captchas I've tried) and legitimate traffic is still coming through. A person with very poor eyesight in our office was quite happy with it as well. Cached pages can cause problems - I put a reminder about using Ctrl+F5 on the failure page - there's no truly effective solution to this.