Improper input validation in Nextcloud Server - CVE-2018-3776
Published: August 21, 2018
Vulnerability identifier: #VU14480
CSH Severity: Low
CVSS v4: 6.9 [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]
CVE-ID: CVE-2018-3776
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
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.
Affected software
Nextcloud Server
How to mitigate CVE-2018-3776
Update to version 11.0.5, 12.0.3.
Nextcloud Server - addressed in versions 11.0.5, 12.0.3