Improper input validation in Nextcloud Server - CVE-2018-3776
Published: August 21, 2018
Vulnerability identifier: #VU14480
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2018-3776
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 disclosed vulnerability allows a remote attacker to bypass security restrictions on the target system.
The vulnerability exists due to insufficient sanitization of user-supplied data passed to JSON encoder. A remote attacker can cause attacker's actions not being logged in the audit log.
How to mitigate CVE-2018-3776
Update to version 11.0.5, 12.0.3.