CVE-2026-86596: s2Member – Excellent for All Kinds of Memberships, Content Restriction Paywalls & Member Access Subscriptions (clavaque)

Vulnerabilità critica, punteggio 9,8 su 10, in s2Member – Excellent for All Kinds of Memberships, Content Restriction Paywalls & Member Access Subscriptions (clavaque). Sfruttabile da remoto, via rete, senza credenziali, senza che nessuno faccia nulla. Tipo: iniezione di codice.

Gravità: 9,8 su 10 (critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Tipo di difetto: CWE-94: iniezione di codice
Pubblicata: 2 novembre 2026

Descrizione originale

The s2Member plugin for WordPress is vulnerable to Remote Code Execution in all versions up to, and including, <= 260927 via the 'item_name' parameter parameter. This is due to insufficient sanitization in strip_php_tags_deep(), which only strips literal '<?' sequences, combined with a post-interpolation placeholder cleanup that reassembles a valid '<?php' opener after the attacker-controlled value has already been embedded in the email template. This makes it possible for authenticated attackers, with custom-level access and above, to execute code on the server.

CVE-2026-86596: s2Member – Excellent for All Kinds of Memberships, Content Restriction Paywalls & Member Access Subscriptions (clavaque)

Descrizione originale

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