eRoom – Zoom Meetings & Webinar <= 1.3.8 - Cross-Site Request Forgery

Reaching this weakness in eRoom <= 1.3.8 takes a caller who can reach the endpoint. Cross-site request forgery abuses the fact that browsers attach a victim's cookies to any request, so a state-changing action that only checks who you are, not whether you meant to act, can be triggered from another site.

An attacker who gets a logged-in user to load a crafted page can perform that action as them, with the impact scaling to whatever the victim's role is allowed to do. For eRoom the fix is 1.3.9: builds <= 1.3.8 are affected, anything from 1.3.9 onward is not.