CVE-2026-85081

11th percentile - higher than 11% of all known CVEs

The File Manager WordPress plugin before 8.0.5, FileOrganizer WordPress plugin before 1.2.1, and File Manager Pro WordPress plugin before 2.1.3 do not correctly validate the origin of window messages received by the file browser they load on their admin screens. They accept any origin that is a leading string prefix of the site's own address, allowing an unauthenticated attacker to run arbitrary JavaScript in the session of a logged-in administrator who visits a page under their control. The defect is in the file-manager library all three bundle, and every version below 2.1.70 carries it.

An unauthenticated attacker can execute arbitrary JavaScript in an administrator's session, leading to admin account takeover and full site compromise. The risk is critical because it requires no authentication and only that an administrator visits an attacker-controlled page.

Update File Manager to 8.0.5, FileOrganizer to 1.2.1, and File Manager Pro to 2.1.3 or later, which raises the bundled library to version 2.1.70. Verify that the bundled file-manager library is at least version 2.1.70.