Open redirection in TYPO3 extension Mail
The click tracking middleware accepts an arbitrary target URL and redirects to it.
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The click tracking middleware accepts an arbitrary target URL and redirects to it.
The click tracking middleware does not validate the authentication code of a recipient if the code is omitted.
Saving the configuration of the mail backend module writes submitted settings to the page TSconfig without restricting them to the configuration options of the module.
Backend actions and ajax routes of the mail module do not check whether the backend user has access to the page of the requested mail or recipient group.
Content of external URL mails, their stylesheets and images to embed is fetched by the server without validating the target host.
The HTML content of mails and tracked URLs are rendered unescaped in the backend module.