The Plus Addons for Elementor Page Builder WordPress plugin before 4.1.7 was being actively exploited to by malicious actors to bypass authentication, allowing unauthenticated users to log in as any user (including admin) by just providing the related username, as well as create accounts with arbitrary roles, such as admin. These issues can be exploited even if registration is disabled, and the Login widget is not active.

References

• https://nvd.nist.gov/vuln/detail/CVE-2021-24175
• https://posimyth.ticksy.com/ticket/2713734/
• https://wpscan.com/vulnerability/c311feef-7041-4c21-9525-132b9bd32f89
• https://www.wordfence.com/blog/2021/03/critical-0-day-in-the-plus-addons-for-elementor-allows-site-takeover/