WordPress Easy Dropbox Integration plugin < 2.2.0 - Unauthenticated Arbitrary Connected Dropbox File Access and Upload via nopriv AJAX vulnerability

Unauthenticated Arbitrary Connected Dropbox File Access and Upload via nopriv AJAX vulnerability discovered by Pablo González Pérez, Francisco José Ramírez Vicente and Iñigo Sánchez Enciso in WordPress Plugin Easy Integration for Dropbox versions 2.2.0...

CVE-2026-15958

The Easy Integration for Dropbox WordPress plugin, in versions prior to 2.2.0 , is vulnerable to an authentication bypass. The plugin fails to perform proper authorization checks on several file-management AJAX actions that are accessible to unauthenticated users. This flaw allows an unauthentica...

CVE-2026-15958 Easy Dropbox Integration < 2.2.0 - Unauthenticated Arbitrary Connected Dropbox File Access and Upload via nopriv AJAX

The Easy Integration for Dropbox WordPress plugin before 2.2.0 does not perform authorization checks on several of its file-management AJAX actions that it also registers for unauthenticated users, allowing an unauthenticated attacker to list, download and upload arbitrary files across the...

CVE-2026-15958 Easy Dropbox Integration < 2.2.0 - Unauthenticated Arbitrary Connected Dropbox File Access and Upload via nopriv AJAX

The Easy Integration for Dropbox WordPress plugin before 2.2.0 does not perform authorization checks on several of its file-management AJAX actions that it also registers for unauthenticated users, allowing an unauthenticated attacker to list, download and upload arbitrary files across the...

CSRF in Facebook/Dropbox - "Mallory added a file using Dropbox"

tl;dr Facebook Groups offers the option to upload files directly from the Dropbox account. This integration is done using the OAuth 2.0 protocol and suffered from a variant of the classic OAuth CSRF defined by Egor Homakov as the the Most Common OAuth2 Vulnerability, see video below: Introduction...