title: Unrestricted upload of dangerous file types in C21 Live Encoder and Live Mosaic
description: Unrestricted upload of dangerous file types in the C21 Live Encoder and Live Mosaic product, version 5.3. This vulnerability allows a remote attacker to upload different file extensions without any restrictions, resulting in a full system compromise.
problem types: CWE-434 Unrestricted Upload of File with Dangerous Type
affected:
{
defaultStatus: unaffected
product: C21 Live Encoder and Live Mosaic
vendor: Cires21
versions:
status: affected, version: 5.3
}
metrics:
cvssV3_1: [
attackComplexity: LOW
attackVector: NETWORK
availabilityImpact: HIGH
baseScore: 10
baseSeverity: CRITICAL
confidentialityImpact: HIGH
integrityImpact: HIGH
privilegesRequired: NONE
scope: CHANGED
userInteraction: NONE
vectorString: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
version: 3.1
]
format: CVSS
scenarios: GENERAL
solutions: The vulnerability has been resolved by the Cires21 team in the latest software version of the affected products, which was released in the last week of November.