A flaw was found in Roundcube from versions 1.2.0 to 1.3.5, with the archive plugin enabled and configured, it's possible to exploit the unsanitized, user-controlled "_uid" parameter (in an archive.php _task=mail&_mbox=INBOX&_action=plugin.move2archive request) to perform an MX (IMAP) injection attack by placing an IMAP command after a %0d%0a sequence. NOTE: this is less easily exploitable in 1.3.4 and later because of a Same Origin Policy protection mechanism. References: https://github.com/roundcube/roundcubemail/issues/6229 https://github.com/roundcube/roundcubemail/issues/6238 https://medium.com/@ndrbasi/cve-2018-9846-roundcube-303097048b0a Patch: https://github.com/roundcube/roundcubemail/commit/e3dd5b66d236867572e68fcb80281e9268a0cfb0
Created roundcubemail tracking bugs for this issue: Affects: epel-all [bug 1566744]