Attachment Exposure Vulnerability in xdg-email Component of xdg-utils

CVE-2020-27748

What is CVE-2020-27748?

A vulnerability has been discovered in the xdg-email component of xdg-utils, affecting versions 1.1.0-rc1 and later. This flaw enables the addition of attachments through mailto: URIs sent to users of email clients like Thunderbird. If a user executes a link containing such a malicious URI without realizing it, an attachment could be automatically included in their email, leading to potential unintentional disclosure of sensitive information. This issue specifically resides in the xdg-email code, separate from Thunderbird's own functionalities.

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