The WP App Bar plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'app-bar-features' parameter in all versions up to, and including, 1.5. This is due to insufficient input sanitization and output escaping combined with a missing authorization check in the `App_Bar_Settings` class constructor. This makes it possible for unauthenticated attackers to inject arbitrary web scripts into multiple plugin settings that will execute whenever a user accesses the admin settings page.
Attack Parameters
Attack Vector
Network
Атака возможна удалённо
Attack Complexity
Low
Легко эксплуатировать
Privileges Required
None
Права не нужны
User Interaction
None
Не нужно действие пользователя
Impact Assessment
Confidentiality
Low
Частичная утечка данных
Integrity
Low
Частичная модификация данных
Availability
None
Нет нарушения работы
CVSS Vector v3.1
Weakness Type (CWE)
References 3
https://plugins.trac.wordpress.org/browser/wp-app-bar/tags/1.5/includes/class-a…
security@wordfence.com
https://plugins.trac.wordpress.org/browser/wp-app-bar/trunk/includes/class-app-…
security@wordfence.com
https://www.wordfence.com/threat-intel/vulnerabilities/id/9b448712-b989-453f-9a…
security@wordfence.com