Improper input validation in Gitlab Community Edition - CVE-2018-3740
Published: June 28, 2018 / Updated: December 27, 2018
Vulnerability identifier: #VU13535
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2018-3740
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: GitLab, Inc
Affected software:
Gitlab Community Edition
Gitlab Community Edition
Detailed vulnerability description
The vulnerability allows a remote attacker to bypass security restrictions on the target system.
The vulnerability exists due to improper input validation. A remote attacker can supply a specially crafted HTML fragment, cause Sanitize gem for Ruby and use non-whitelisted attributes on a whitelisted HTMLelement.
How to mitigate CVE-2018-3740
The vulnerability is fixed in the versions 11.0.1, 10.8.5, and 10.7.6.