Description In Moodle 3.x, the setting for blocked hosts list can be bypassed with multiple A record hostnames. Remediation References CVE-2018-1043 Related Vulnerabilities Internet Information Services Exposure of Sensitive Information to an Unauthorized Actor Vulnerability (CVE-1999-0348) Moodle Other Vulnerability (CVE-2004-2237) Swagger UI DOM XSS vulnerability ownCloud Session Fixation Vulnerability (CVE-2021-35948) PostgreSQL Improper Certificate Validation Vulnerability (CVE-2021-43767) Severity Medium Classification CVE-2018-1043 CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N Tags Missing Update Known Vulnerabilities