CVE-2014-9283

The BestWebSoft Captcha plugin before 4.0.7 for WordPress allows remote attackers to bypass the CAPTCHA protection mechanism and obtain administrative access via unspecified vectors.

Date published : 2015-03-03

https://wordpress.org/plugins/captcha/changelog/

http://jvn.jp/en/jp/JVN93727681/index.html