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CVE-2018-9846 Details

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.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:8.8 HIGHVector:CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://github.com/roundcube/roundcubemail/issues/6229	CVE	PatchThird Party Advisory
https://github.com/roundcube/roundcubemail/issues/6238	CVE	PatchThird Party Advisory
https://medium.com/%40ndrbasi/cve-2018-9846-roundcube-303097048b0a	CVE
https://www.debian.org/security/2018/dsa-4181	CVE	Third Party Advisory
https://github.com/roundcube/roundcubemail/issues/6229	[email protected]	PatchThird Party Advisory
https://github.com/roundcube/roundcubemail/issues/6238	[email protected]	PatchThird Party Advisory
https://medium.com/%40ndrbasi/cve-2018-9846-roundcube-303097048b0a	[email protected]
https://www.debian.org/security/2018/dsa-4181	[email protected]	Third Party Advisory

see all 8 references

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-20	Improper Input Validation	[email protected]

Affected Products

Product	Versions
roundcube webmail	>= 1.2.0, <= 1.3.5
CPE cpe:2.3:a:roundcube:webmail:::::::: Remediation No remediation found in references.
debian debian linux	9.0
CPE cpe:2.3:o:debian:debian_linux:9.0:::::::* Remediation No remediation found in references.

Change History

7 change records found show changes

Date	Action	Recorded By
Jun 17, 2026	CVE Modified	[email protected]
Nov 21, 2024	CVE Modified	CVE
May 14, 2024	CVE Modified	[email protected]
Nov 7, 2023	CVE Modified	[email protected]
May 24, 2018	Initial Analysis	[email protected]
Apr 30, 2018	CVE Modified	[email protected]
Apr 9, 2018	CVE Modified	[email protected]