CVE-2026-7641
Vulnérabilité élevée dans Import and export users and customers (carazo)
Description
The Import and export users and customers plugin for WordPress is vulnerable to Privilege Escalation in all versions up to and including 2.0.8 via the `save_extra_user_profile_fields()` function. This is due to an incomplete blocklist that correctly restricts capability meta keys for the primary site (e.g., `wp_capabilities`, `wp_user_level`) but fails to block the equivalent meta keys for any other subsite in a WordPress Multisite network (e.g., `wp_2_capabilities`, `wp_2_user_level`), allowing these keys to pass the `in_array()` check and be written directly to user meta via `update_user_meta()`. This makes it possible for authenticated attackers, with Subscriber-level access and above, to escalate their privileges to Administrator on any subsite within the Multisite network by submitting a crafted profile update to `/wp-admin/profile.php`. Exploitation requires that an administrator has previously imported a CSV file containing multisite-prefixed capability column headers and has enabled the 'Show fields in profile?' option, which causes those keys to be stored in the `acui_columns` option and exposed as editable fields on the user profile page.
Gravité et risque d'exploitation
CVE-2026-7641 obtient un score CVSS de 8.8/10, soit une gravité élevée. Selon le modèle EPSS, la probabilité qu'elle soit exploitée dans les 30 prochains jours est de 0.72 %, ce qui la place devant 52.9 % des CVE référencées.
Que faire ?
- Vérifiez si Import and export users and customers (versions <=2.0.8, 0) est présent sur votre parc.
- Appliquez le correctif ou la version corrigée indiqués dans les références de l'éditeur.
- À défaut de correctif, limitez l'exposition (filtrage réseau, désactivation du composant).
- Automatisez la détection : les agents CVE Heimdall (gratuits, open source) corrèlent l'inventaire de vos serveurs avec la base CVE.
Références
- https://www.wordfence.com/threat-intel/vulnerabilities/id/368cff00-6a86-443e-aec4-4115a229a3c1?source=cve
- https://plugins.trac.wordpress.org/browser/import-users-from-csv-with-meta/trunk/classes/columns.php#L221
- https://plugins.trac.wordpress.org/browser/import-users-from-csv-with-meta/tags/2.0.8/classes/columns.php#L221
- https://plugins.trac.wordpress.org/browser/import-users-from-csv-with-meta/trunk/classes/columns.php#L198
- https://plugins.trac.wordpress.org/browser/import-users-from-csv-with-meta/tags/2.0.8/classes/columns.php#L198
- https://plugins.trac.wordpress.org/browser/import-users-from-csv-with-meta/trunk/classes/helper.php#L150
- https://plugins.trac.wordpress.org/browser/import-users-from-csv-with-meta/tags/2.0.8/classes/helper.php#L150
- https://plugins.trac.wordpress.org/browser/import-users-from-csv-with-meta/trunk/classes/multisite.php#L21
- https://plugins.trac.wordpress.org/browser/import-users-from-csv-with-meta/tags/2.0.8/classes/multisite.php#L21
- https://plugins.trac.wordpress.org/browser/import-users-from-csv-with-meta/tags/2.0.6/classes/columns.php#L221
- https://plugins.trac.wordpress.org/browser/import-users-from-csv-with-meta/tags/2.0.6/classes/columns.php#L198
- https://plugins.trac.wordpress.org/browser/import-users-from-csv-with-meta/tags/2.0.6/classes/helper.php#L150
- https://plugins.trac.wordpress.org/browser/import-users-from-csv-with-meta/tags/2.0.6/classes/multisite.php#L21
- https://plugins.trac.wordpress.org/changeset/3515646