WordPress · Export/Import Users/Customers · CVE-2026-7641
**Name of the Vulnerable Software and Affected Versions**
Import and export users and customers plugin for WordPress versions prior to 2.0.9
**Description**
An issue exists in the `save extra user profile fields()` function where an incomplete blocklist fails to restrict capability meta keys for subsites in a WordPress Multisite network. While primary site keys like `wp capabilities` and `wp user level` are blocked, subsite equivalents such as `wp 2 capabilities` and `wp 2 user level` can bypass the `in array()` check and be written to user meta via `update user meta()`. Authenticated attackers with Subscriber-level access or higher can escalate their privileges to Administrator on any subsite by submitting a crafted profile update to the "/wp-admin/profile.php" endpoint. This requires an administrator to have previously imported a CSV file with multisite-prefixed capability column headers and enabled the 'Show fields in profile?' option, which exposes these keys as editable fields on the user profile page.
**Recommendations**
Update the plugin to a version later than 2.0.8.
As a temporary workaround, disable the 'Show fields in profile?' option to prevent capability keys from being exposed as editable fields on the user profile page.