title: Insufficient Verification of Data Authenticity in Nextcloud Server
description: Nextcloud Server is the file server software for Nextcloud, a self-hosted productivity platform. Prior to versions 21.0.8, 22.2.4, and 23.0.1, it is possible to trick administrators into enabling "recommended" apps for the Nextcloud server that they do not need, thus expanding their attack surface unnecessarily. This issue is fixed in versions 21.0.8 , 22.2.4, and 23.0.1.
problem types: CWE-345: Insufficient Verification of Data Authenticity
affected:
{
product: security-advisories
vendor: nextcloud
versions:
status: affected, version: < 21.0.8
status: affected, version: < 22.2.4
status: affected, version: < 23.0.1
}
metrics:
cvssV3_1: [
attackComplexity: LOW
attackVector: NETWORK
availabilityImpact: NONE
baseScore: 2.4
baseSeverity: LOW
confidentialityImpact: NONE
integrityImpact: LOW
privilegesRequired: HIGH
scope: UNCHANGED
userInteraction: REQUIRED
vectorString: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:N/I:L/A:N
version: 3.1
]