The Xhanch - My Advanced Settings plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 1.1.2. This is due to missing nonce validation in the `xms_setting()` function on the settings update handler. This makes it possible for unauthenticated attackers to modify plugin settings via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.
Settings that can be modified include favicon URL, Google Analytics account ID, and various WordPress behavior toggles. The `favicon_url` and `ga_acc_id` values are output on the front-end without escaping, enabling a CSRF to Stored XSS chain.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Privileges Required
None
No privileges needed
User Interaction
Required
User action required
Impact Assessment
Confidentiality
None
No data leak
Integrity
Low
Partial data modification
Availability
None
No disruption
CVSS Vector v3.1
Weakness Type (CWE)
References 3
https://plugins.trac.wordpress.org/browser/xhanch-my-advanced-settings/tags/1.1…
security@wordfence.com
https://plugins.trac.wordpress.org/browser/xhanch-my-advanced-settings/trunk/ad…
security@wordfence.com
https://www.wordfence.com/threat-intel/vulnerabilities/id/66dd73c5-1cf1-484e-b8…
security@wordfence.com