The Freemius SDK, as used by hundreds of WordPress plugin and theme developers, was vulnerable to Cross-Site Request Forgery and Information disclosure due to missing capability checks and nonce protection on the _get_debug_log, _get_db_option, and the _set_db_option functions in versions up to, and including 2.4.2. Any WordPress plugin or theme running a version of Freemius less than 2.4.3 is vulnerable.

HumHub Social Network Kit Enterprise v1.3.13 allows remote attackers to find the user accounts existing on any Social Network Kits (including self-hosted ones) by brute-forcing the username after the /u/ initial URI substring, aka Response Discrepancy Information Exposure.