Arbitrary file upload in Nextcloud Contacts - CVE-2020-8181

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Main Vulnerability Database Vulnerabilities #VU48690

Arbitrary file upload in Nextcloud Contacts - CVE-2020-8181

Published: July 10, 2020 / Updated: November 27, 2020


Vulnerability identifier: #VU48690
CSH Severity: High
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2020-8181
CWE-ID: CWE-434
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vulnerable software:
Nextcloud Contacts
Software vendor:
Nextcloud

Description

The vulnerability allows a remote user to compromise vulnerable system.

The vulnerability exists due to insufficient validation of file during file upload. A remote user can upload a malicious avatar and execute it on the server.


Remediation

Install updates from vendor's website.

External links