CVE-2019-10741
https://notcve.org/view.php?id=CVE-2019-10741
K-9 Mail v5.600 can include the original quoted HTML code of a specially crafted, benign looking, email within (digitally signed) reply messages. The quoted part can contain conditional statements that show completely different text if opened in a different email client. This can be abused by an attacker to obtain valid S/MIME or PGP signatures for arbitrary content to be displayed to a third party. NOTE: the vendor states "We don't plan to take any action because of this." K-9 Mail v5.600 puede incluir el código HTML original entrecomillado de un correo electrónico especialmente manipulado y de aspecto benigno en los mensajes de respuesta (con firma digital). • https://github.com/k9mail/k-9/issues/3925 • CWE-254: 7PK - Security Features •