High severity8.8NVD Advisory· Published Apr 7, 2018· Updated Jun 17, 2026
CVE-2018-9846
CVE-2018-9846
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.
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LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
2- Range: >=1.2.0, <=1.3.5
Patches
Vulnerability mechanics
References
4- github.com/roundcube/roundcubemail/issues/6229nvdPatchThird Party Advisory
- github.com/roundcube/roundcubemail/issues/6238nvdPatchThird Party Advisory
- www.debian.org/security/2018/dsa-4181nvdThird Party Advisory
- medium.com/%40ndrbasi/cve-2018-9846-roundcube-303097048b0anvd
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