Plugin Vulnerabilities
| 2017-12-19 | Captcha 4.3.6–4.4.4 - Backdoored | fixed in version 4.4.5 |
| 2017-04-12 | Multiple BestWebSoft Plugins - Authenticated Cross-Site Scripting (XSS) | fixed in version 4.3.0 |
| 2015-03-03 | Captcha <= 4.0.6 - Captcha Bypass | fixed in version 4.0.7 |
| 2014-08-01 | Captcha 2.12-3.8.1 - Captcha Bypass | fixed in version 3.8.2 |
