Users will always need to enter a CAPTCHA code before taking any action, regardless of their user roles or login locations.
This means spam and automated form submission bots will have lower chances of flooding the site with spam comments or registering new user accounts.
Additionally, since the login form is also CAPTCHA protected, indirectly, this plugin serves as a brute-force attack prevention system as well.
Installation:
Unpack and upload it to the /wp-content/plugins/ directory.
Activate the plugin through the 'Plugins' menu in WordPress.
Features:
- WP admin panel integration
- Can disable itself for logged in users
- Translation ready code
- Control CAPTCHA background
- Show arched lines through CAPTCHA text
- Support for audible CAPTCHAs
- CAPTCHA reload button
- WAI Accessibility Validation support
- Doesn't break the trackbacks and pingbacks systems
- Standards compliant code output (doesn't break site validation)
What is new in this release:
- Removed ThemeFuse ad.
What is new in version 2.7.7:
- Update Turkish language.
What is new in version 2.7.6.4:
- Added new setting "Enable honeypot spambot trap".
- Added bugs.
What is new in version 2.7.5:
- WP 3.3 compatibility fix for wp_enqueue_script was called incorrectly.
- Remove more leftover audio code.
- CAPTCHA code cache file performance improvement.
What is new in version 2.7.3:
- Tested / fixed to be compatible with WP 3.2.
- Fixed to be compatible with SFC Comments plugin.
- Fixed error: Undefined variable: securimage_url.
- CAPTCHA audio feature removed.
- Updated Italian language (it_IT).
What is new in version 2.7.2:
- CAPTCHA Audio feature is disabled by Mike Challis until further notice because a proof of concept code CAPTCHA solving exploit was released - Security Advisory - SOS-11-007. CAPTCHA image is not involved.
- Fix JavaScript error when CAPTCHA audio is disabled.
- Fixed missing width/height attributes for CAPTCHA images.
What is new in version 2.7:
- Modified the setting "CAPTCHA input label position on the comment form:" with more options for input and label positions for matching themes.
- Added new setting in the "Text Labels:" to allow you to change the required field indicator. The default is " *", but you can now change it to "(required)" or anything you want.
- Added lost password CAPTCHA
- Fixed Valid HTML for BuddyPress
- Fixed sidebar logo for BuddyPress
What is new in version 2.6.4:
- Added more settings for setting CAPTCHA input field and label CAPTCHA input field CSS. These settings can be used to adjust the CAPTCHA input field to match your theme. See FAQ Page
- Added new setting: "CAPTCHA input label position on the comment form:" Changes position of the CAPTCHA input labels on the comment form. Some themes have different label positions on the comment form.
- Added Portuguese Portugal (pt_PT).
- Added Serbian (sr_SR).
- Updated Spanish (en_ES).
- Updated Romanian (ro_RO).
What is new in version 2.6.3.2:
- Rename CAPTCHA font files all lower case.
- Small changes to admin page.
Requirements:
- WordPress 2.9 or higher
- PHP 5 or higher
- GD2 library support
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