Gentoo Linux Security Advisory GLSA 200603-09 - SquirrelMail does not validate the right_frame parameter in webmail.php, possibly allowing frame replacement or cross-site scripting. Martijn Brinkers and Scott Hughes discovered that MagicHTML fails to handle certain input correctly, potentially leading to cross-site scripting. Vicente Aguilera reported that the sqimap_mailbox_select function did not strip newlines from the mailbox or subject parameter, possibly allowing IMAP command injection. Versions less than 1.4.6 are affected.
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SquirrelMail versions 1.4.5 and below suffer from an IMAP injection flaw. Versions 1.2.7 and below suffer from a SMTP injection flaw. Details provided.
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