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.

Category

8.8
CVSS
Severity: High
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.45%
Vendor Advisory debian.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://github.com/roundcube/roundcubemail/issues/6238 third party advisory patch
https://www.debian.org/security/2018/dsa-4181 third party advisory vendor advisory
https://github.com/roundcube/roundcubemail/issues/6229 third party advisory patch
https://medium.com/%40ndrbasi/cve-2018-9846-roundcube-303097048b0a

Frequently Asked Questions

What is the severity of CVE-2018-9846?
CVE-2018-9846 has been scored as a high severity vulnerability.
How to fix CVE-2018-9846?
To fix CVE-2018-9846, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2018-9846 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2018-9846 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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