Improper input validation in Nextcloud Server - CVE-2018-3761
Published: August 6, 2018 / Updated: August 7, 2018
Vulnerability identifier: #VU14214
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:A/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2018-3761
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Nextcloud
Affected software:
Nextcloud Server
Nextcloud Server
Detailed vulnerability description
The vulnerability allows a remote attacker to obtain potentially sensitive information on the target system.
The vulnerability exists due to insufficient input validation. A remote attacker with access to the OAuth2 refresh token can trick the victim into opening a specially crafted data and obtain new tokens.
How to mitigate CVE-2018-3761
Update to version 12.0.8 or 13.0.3.