Arbitrary Code Execution via Unrestricted Inline Function Calls in Blue River Mura CMS

CVE-2018-7486 · MEDIUM Severity

AV:N/AC:L/AU:S/C:P/I:P/A:P

Blue River Mura CMS before v7.0.7029 supports inline function calls with an [m] tag and [/m] end tag, without proper restrictions on file types or pathnames, which allows remote attackers to execute arbitrary code via an [m]$.dspinclude("../pathname/executable.jpeg")[/m] approach, where executable.jpeg contains ColdFusion Markup Language code. This can be exploited in conjunction with a CKFinder feature that allows file upload.

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