The Avada | Website Builder For WordPress & WooCommerce theme for WordPress is vulnerable to Stored Cross-Site Scripting via the user profile 'Author Page' social link contact-method fields (author_facebook, author_twitter, author_linkedin, author_dribble, author_whatsapp, author_email) in versions up to, and including, 7.16.1. Avada registers these fields through the user_contactmethods filter and, on the author archive, emits them inside an anchor href using only esc_attr() in Fusion_Social_Icon::get_markup(), which escapes HTML metacharacters but does not reject dangerous URL schemes such as javascript:. This makes it possible for authenticated attackers, with Subscriber-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses their author page and clicks the injected social icon (a click is required, and the site must have 'Open Social Icons in a New Window' set to Off so the browser doesn't block the javascript: URL from opening in a new tab).
| Métrique | Valeur | Interprétation |
|---|---|---|
|
AV (Vecteur d'Attaque)
Attack Vector
|
Network (N)
|
Exploit possible à distance via réseau (HTTP, API, etc.) |
|
AC (Complexité d'Attaque)
Attack Complexity
|
Low (L)
|
Peu de conditions requises pour exploiter |
|
PR (Privilèges Requis)
Privileges Required
|
Low (L)
|
Authentifié avec compte utilisateur basique |
|
UI (Interaction Utilisateur)
User Interaction
|
None (N)
|
Aucune interaction utilisateur nécessaire |
|
S (Périmètre)
Scope
|
Changed (C)
|
Impact s'étend au-delà du composant compromis |
|
C (Impact Confidentialité)
Confidentiality Impact
|
Low (L)
|
Divulgation limitée d'informations |
|
I (Impact Intégrité)
Integrity Impact
|
Low (L)
|
Modification limitée des données possible |
|
A (Impact Disponibilité)
Availability Impact
|
None (N)
|
Aucune interruption de service |