Title: WM Simple Captcha
Author: Web Mumbai
Published: <strong>2014年3月1日</strong>
Last modified: 2016年1月3日

---

プラグインを検索

![](https://ps.w.org/wm-simple-captcha/assets/banner-772x250.png?rev=867471)

このプラグインは **WordPress の最新3回のメジャーリリースに対してテストされていま
せん**。もうメンテナンスやサポートがされていないかもしれず、最新バージョンの WordPress
で使用した場合は互換性の問題が発生する可能性があります。

![](https://s.w.org/plugins/geopattern-icon/wm-simple-captcha_cecece.svg)

# WM Simple Captcha

 作者: [Web Mumbai](https://profiles.wordpress.org/webmumbai/)

[ダウンロード](https://downloads.wordpress.org/plugin/wm-simple-captcha.2.0.3.zip)

 * [詳細](https://ja.wordpress.org/plugins/wm-simple-captcha/#description)
 * [レビュー](https://ja.wordpress.org/plugins/wm-simple-captcha/#reviews)
 *  [インストール](https://ja.wordpress.org/plugins/wm-simple-captcha/#installation)
 * [開発](https://ja.wordpress.org/plugins/wm-simple-captcha/#developers)

 [サポート](https://wordpress.org/support/plugin/wm-simple-captcha/)

## 説明

WM Simple Captcha for registration page, customize captcha image according to your
theme. Change image width, height, background color, set possible characters, add
space between two characters, adjust font size, change form label, add your custom
css, enable/disable refresh button, change refresh button. Many think more on customization.

#### 機能について

 * Enable/Disable Captcha for wordpress registration page
 * Set the captcha image with
 * Set the captcha image height
 * Set the captcha possible characters length
 * Adjust font size
 * Enable space between characters
 * Change font
 * Set possible letters
 * Set random Dots
 * Set random Line
 * Set text color
 * Set dots color
 * Set line color
 * Change form label
 * Enable captcha border
 * Set captcha border color
 * Enable/Disable refresh button
 * Change refresh images as your theme
 * Not case sensitive

In Short you can change captcha image style as your theme style.

## スクリーンショット

 * [[
 * The overview screen registration.
 * [[
 * “WM Simple Captcha setting” page.
 * [[
 * Captcha Image Settings.
 * [[
 * Form Settings.
 * [[
 * Form Error and custom CSS

## インストール

#### 手動インストール

 1. プラグインのファイルを自分のコンピューターにダウンロードして、解凍します。
 2. Using an FTP program, or your hosting control panel, upload `wm_simple_captcha`
    folder to the `/wp-content/plugins/` directory
 3. Login to your WordPress admin panel.
 4. WordPress の「プラグイン」メニューからプラグインを有効化してください
 5. Go To setting -> wm_simple_captcha change default setting according to your theme.
 6. Plugin is ready for work.

#### 自動インストール

Automatic installation is the easiest option as WordPress handles the file transfers
itself and you don’t even need to leave your web browser. To do an automatic install,

 1. Login to your WordPress admin panel.
 2. Navigate to the Plugins menu and click Add New.
 3. In the search field type ” WM Simple Captcha” and click Search Plugins.
 4. Once you’ve found the plugin you can view details about it such as the the point
    release, rating and description.
 5. Most importantly of course, you can install it by clicking _Install Now_.
 6. WordPress の「プラグイン」メニューからプラグインを有効化してください
 7. Go To setting -> wm_simple_captcha change default setting according to your theme.
 8. Plugin is ready for work.

## FAQ

  Any detail documentation available?

Yes, [Web Mumbai Plugins](http://plugins.web-mumbai.com/) coming soon detail documentation.

  If enable/disable registration, I loose my “WM Simple Captcha”

No, change your setting of captcha image, then enable this for registration page.

  Can I change background color?

Yes, see the plugin settings page.

  Can I change captcha text color?

Yes, see the plugin settings page.

## 評価

![](https://secure.gravatar.com/avatar/113c5f9278504b2e6d55fce1f8412914ed6328ff34c3b9e099493e36d2f875b7?
s=60&d=retro&r=g)

### 󠀁[Easily bypassed, vulnerable](https://wordpress.org/support/topic/easily-bypassed-vulnerable/)󠁿

 [Gennady Kovshenin](https://profiles.wordpress.org/soulseekah/) 2017年4月19日

This plugin does not really work to stop automated registrations, and here’s why:
Inside wm-simple-captcha/classes/wm_simple_captcha_front.php in the captcha_errors
method, which is supposed to do the validation of the code, the whole logic is wrapped
in a if(isset($_REQUEST['captcha_challenge_field'])){ block. What this means is 
that if the request does not contain the captcha challenge field then no errors 
are output and the captcha is not considered invalid at all, successfully letting
the registration through. Try it yourself, open the /wp-login.php?action=register
page, enter Developer Tools and delete the capthca input box. Viola! Do you really
think that automated registration scripts will actually submit all the form inputs?
Because they won’t. They’ll simply send a POST request to /wp-login.php?action=register
with the bare minimum username and email parameters and they’ll get through. And
they don’t. Thus, this plugin does absolutely nothing to stop spam registrations,
contains a captcha bypass vulnerability.

 [ 4件のレビューをすべて表示 ](https://wordpress.org/support/plugin/wm-simple-captcha/reviews/)

## 貢献者と開発者

WM Simple Captcha はオープンソースソフトウェアです。以下の人々がこのプラグインに
貢献しています。

貢献者

 *   [ Web Mumbai ](https://profiles.wordpress.org/webmumbai/)

[“WM Simple Captcha” をあなたの言語に翻訳しましょう。](https://translate.wordpress.org/projects/wp-plugins/wm-simple-captcha)

### 開発に興味がありますか ?

[コードを閲覧](https://plugins.trac.wordpress.org/browser/wm-simple-captcha/)する
か、[SVN リポジトリ](https://plugins.svn.wordpress.org/wm-simple-captcha/)をチェック
するか、[開発ログ](https://plugins.trac.wordpress.org/log/wm-simple-captcha/)を 
[RSS](https://plugins.trac.wordpress.org/log/wm-simple-captcha/?limit=100&mode=stop_on_copy&format=rss)
で購読してみてください。

## 変更履歴

#### 2.0.3 – 2016-01-03

 * Tested: tested in latest wordpress 4.4

#### 2.0.2 – 2015-08-22

 * Tested: tested in latest wordpress 4.3
 * Bugfix : We fixed

#### 2.0.1 – 2015-07-12

 * Bugfix : We fixed

#### 2.0.0 – 2015-07-12

 * Tested: tested in latest wordpress 4.2.2
 * Added: Font Upload Functionality

#### 1.1.1 – 2015-04-18

 * Bugfix : We fixed error on activation.
 * Tested : WordPress 3.8.1
 * Tested : WordPress 3.8.2
 * Tested : WordPress 3.8.3
 * Tested : WordPress 3.9

#### 1.1 – 2015-03-02

 * Bugfix : We fixed error on activation.

#### 1.0 – 2015-03-01

 * Initial Version

## メタ

 *  バージョン **2.0.3**
 *  最終更新日 **10年前**
 *  有効インストール数 **100+**
 *  WordPress バージョン ** 3.6またはそれ以降 **
 *  検証済み最新バージョン: **4.4.34**
 *  言語
 * [English (US)](https://wordpress.org/plugins/wm-simple-captcha/)
 * タグ
 * [registration captcha](https://ja.wordpress.org/plugins/tags/registration-captcha/)
   [simple captcha](https://ja.wordpress.org/plugins/tags/simple-captcha/)
 *  [詳細を表示](https://ja.wordpress.org/plugins/wm-simple-captcha/advanced/)

## 評価

 5つ星中3.8つ星

 *  [  2 5-星レビュー     ](https://wordpress.org/support/plugin/wm-simple-captcha/reviews/?filter=5)
 *  [  1 4-星レビュー     ](https://wordpress.org/support/plugin/wm-simple-captcha/reviews/?filter=4)
 *  [  0 3-星レビュー     ](https://wordpress.org/support/plugin/wm-simple-captcha/reviews/?filter=3)
 *  [  0 2-星レビュー     ](https://wordpress.org/support/plugin/wm-simple-captcha/reviews/?filter=2)
 *  [  1 1-星レビュー     ](https://wordpress.org/support/plugin/wm-simple-captcha/reviews/?filter=1)

[Your review](https://wordpress.org/support/plugin/wm-simple-captcha/reviews/#new-post)

[すべてのレビューを見る](https://wordpress.org/support/plugin/wm-simple-captcha/reviews/)

## 貢献者

 *   [ Web Mumbai ](https://profiles.wordpress.org/webmumbai/)

## サポート

意見や質問がありますか ?

 [サポートフォーラムを表示](https://wordpress.org/support/plugin/wm-simple-captcha/)

## 寄付

このプラグインが今後も改善できるよう応援しませんか ?

 [ このプラグインに寄付 ](http://plugins.web-mumbai.com/)