CVE-2021-42336

CVE-2021-42336 is a permission bypass vulnerability affecting the learning history page of the Huaju Easytest Online Learning Test Platform. An authenticated attacker can exploit this flaw to access other users' and administrators' account information (excluding passwords) by manipulating URL parameters. Rated as MEDIUM severity (CVSS 4.3), this vulnerability has a low attack complexity and requires user authentication, leading to a limited impact of information disclosure. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion surrounding this CVE.