The SupportCandy – AI Customer Support Ticket System & Live Chatbot Agent plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'name' parameter in all versions up to, and including, 3.5.3 due to insufficient input sanitization and output escaping. 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 an injected page. This exploit chain requires the 'Register user if not exists' setting to be disabled, which is its default configuration.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Privileges Required
Low
Basic privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
Low
Partial data leak
Integrity
Low
Partial data modification
Availability
None
No disruption
CVSS Vector v3.1
Weakness Type (CWE)
Vulnerable Products
psmplugins:supportcandy – ai customer support ticket system & live chatbot agent
References 7
https://plugins.svn.wordpress.org/supportcandy/
security@wordfence.com
https://plugins.trac.wordpress.org/browser/supportcandy/tags/3.5.3/includes/adm…
security@wordfence.com
https://plugins.trac.wordpress.org/browser/supportcandy/tags/3.5.3/includes/cus…
security@wordfence.com
https://plugins.trac.wordpress.org/browser/supportcandy/tags/3.5.3/includes/cus…
security@wordfence.com
https://plugins.trac.wordpress.org/browser/supportcandy/tags/3.5.3/includes/cus…
security@wordfence.com
https://plugins.trac.wordpress.org/changeset/3718257/supportcandy/trunk/include…
security@wordfence.com
https://www.wordfence.com/threat-intel/vulnerabilities/id/9703fa76-fd73-4cd8-aa…
security@wordfence.com