Open redirect vulnerability in Joomla! CMS 3.0.0 through 3.4.1.
An issue was discovered in Joomla! 2.5.0 through 3.10.6 & 4.0.0 through 4.1.0. Inadequate validation of URLs could result into an invalid check whether an redirect URL is internal or not.
An issue was discovered in Joomla! before 3.9.21. Lack of input validation in the vote feature of com_content leads to an open redirect.