Media File Renamer – Auto & Manual Rename <= 5.2.5 - Cross-Site Request Forgery

Media File Renamer <= 5.2.5 carries this weakness at post_title, and reaching it 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 Media File Renamer the fix is 5.2.6: builds <= 5.2.5 are affected, anything from 5.2.6 onward is not.