### [CVE-2018-9846](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-9846) ![](https://img.shields.io/static/v1?label=Product&message=n%2Fa&color=blue) ![](https://img.shields.io/static/v1?label=Version&message=n%2Fa&color=blue) ![](https://img.shields.io/static/v1?label=Vulnerability&message=n%2Fa&color=brighgreen) ### Description 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. ### POC #### Reference - https://medium.com/@ndrbasi/cve-2018-9846-roundcube-303097048b0a - https://medium.com/@ndrbasi/cve-2018-9846-roundcube-303097048b0a #### Github No PoCs found on GitHub currently.