CVE-2025-12512
Vulnérabilité moyenne dans GenerateBlocks (edge22)
Description
The GenerateBlocks plugin for WordPress is vulnerable to information exposure due to missing object-level authorization checks in versions up to, and including, 2.1.2. This is due to the plugin registering multiple REST API routes under `generateblocks/v1/meta/` that gate access with `current_user_can('edit_posts')`, which is granted to low-privileged roles such as Contributor. The handlers accept arbitrary entity IDs (user IDs, post IDs, etc.) and meta keys, returning any requested metadata with only a short blacklist of password-like keys for protection. There is no object-level authorization ensuring the caller is requesting only their own data, and there is no allowlist of safe keys. This makes it possible for authenticated attackers, with Contributor-level access and above, to exfiltrate personally identifiable information (PII) and other sensitive profile data of administrator accounts or any other users by directly querying user meta keys via the exposed endpoints via the `get_user_meta_rest` function. In typical WordPress + WooCommerce setups, this includes names, email, phone, and address fields that WooCommerce stores in user meta, enabling targeted phishing, account takeover pretexting, and privacy breaches.
Gravité et risque d'exploitation
CVE-2025-12512 obtient un score CVSS de 4.3/10, soit une gravité moyenne. Selon le modèle EPSS, la probabilité qu'elle soit exploitée dans les 30 prochains jours est de 0.35 %, ce qui la place devant 27.5 % des CVE référencées.
Que faire ?
- Vérifiez si GenerateBlocks (versions <=2.1.2, 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/6affdb56-39cc-4749-b7cb-b80b7666f028?source=cve
- https://plugins.trac.wordpress.org/browser/generateblocks/tags/2.1.1/includes/class-meta-handler.php#L56
- https://plugins.trac.wordpress.org/browser/generateblocks/tags/2.1.1/includes/class-meta-handler.php#L297
- https://plugins.trac.wordpress.org/browser/generateblocks/tags/2.1.1/includes/class-meta-handler.php#L61
- https://plugins.trac.wordpress.org/changeset/3415721/generateblocks/trunk/includes/class-meta-handler.php