Inadequate validation of URLs could result into an invalid check whether an redirect URL is internal or not..

The pagination class includes arbitrary parameters in links, leading to cache poisoning attack vectors.

The mail template feature lacks an escaping mechanism, causing XSS vectors in multiple extensions.

Improper Access Controls allows backend users to overwrite their username when disallowed.

The stripImages and stripIframes methods didn't properly process inputs, leading to XSS vectors.

Various module chromes didn't properly process inputs, leading to XSS vectors.

Lack of output escaping in the id attribute of menu lists.

Improper Access Controls allows access to protected views.

Insufficient state checks lead to a vector that allows to bypass 2FA checks.

The MFA management features did not properly terminate existing user sessions when a user's MFA methods have been modified.

Inadequate parsing of URLs could result into an open redirect.

Inadequate escaping of mail addresses lead to XSS vulnerabilities in various components.

Inadequate content filtering leads to XSS vulnerabilities in various components.

Inadequate input validation for media selection fields lead to XSS vulnerabilities in various extensions.

The wrapper extensions do not correctly validate inputs, leading to XSS vectors.

The fancyselect list field layout does not correctly escape inputs, leading to a self-XSS vector.

Improper handling of input could lead to an XSS vector in the StringHelper::truncate method.

The language file parsing process could be manipulated to expose environment variables. Environment variables might contain sensible information.