Vulnerability in carazo Import and export users and customers

[ Description ]Official description

The Import and export users and customers plugin for WordPress is vulnerable to Privilege Escalation in all versions up to, and including, 2.5.11 This is due to a non-atomic multi-option write sequence in the `ACUI_Cron::save_settings()` function, which persists `acui_cron_activated`, `acui_cron_configured_by`, `acui_cron_user_id`, and `acui_cron_path_to_file` before reaching the authorization gate that calls `wp_die()` when a non-promoter submits a role. This makes it possible for authenticated attackers holding a custom delegated role with `create_users` but without `promote_users` or `edit_users` to escalate their privileges to Administrator, provided a prior administrator cron-tab save exists and no successful save intervenes before the next unattended cron tick processes the attacker's repointed CSV file.

[ Fixes ]Fixes and patches

No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.

[ References ]References

• plugins.trac.wordpress.org/browser/import-users-from-csv-with-meta/tags/2.5.7/classes/c…
• plugins.trac.wordpress.org/browser/import-users-from-csv-with-meta/tags/2.5.7/classes/c…
• plugins.trac.wordpress.org/browser/import-users-from-csv-with-meta/tags/2.5.7/classes/c…
• plugins.trac.wordpress.org/browser/import-users-from-csv-with-meta/tags/2.5.7/classes/i…
• plugins.trac.wordpress.org/browser/import-users-from-csv-with-meta/tags/2.5.7/classes/i…
• plugins.trac.wordpress.org/changeset/3775652/import-users-from-csv-with-meta
• plugins.trac.wordpress.org/changeset/3775652/import-users-from-csv-with-meta/trunk/clas…
• www.wordfence.com/threat-intel/vulnerabilities/id/4db0991f-fc89-411b-b0df-1a11c9ddec1f