Wavlink WN530HG4 M30HG4.V5030.191116 was discovered to contain a hardcoded encryption/decryption key for its configuration files at /etcro/lighttpd/www/cgi-bin/ExportAllSettings.sh.
An issue was discovered where a page is exposed that has the current administrator password in cleartext in the source code of the page. No authentication is required in order to reach the page (a certain live?.shtml page with the variable syspasswd). Affected Devices: Wavlink WN530HG4, Wavlink WN531G3, and Wavlink WN572HG3
An access control issue in Wavlink WN530HG4 M30HG4.V5030.191116 allows attackers to obtain usernames and passwords via view-source:http://IPADDRESS/setsafety.shtml?r=52300 and searching for [var syspasswd].
An access control issue in Wavlink WN530HG4 M30HG4.V5030.191116 allows unauthenticated attackers to download log files and configuration data.