What’s Vulnerable › Vulnerabilities
CVE-2026-94378: SupportCandy <= 3.5.3 - Authenticated (Subscriber+) Stored Cross-Site Scripting via 'name' Parameter
- Severity: medium (CVSS 6.4 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.2% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-10-03 · updated 2026-10-06
- Weakness: CWE-79
Description
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.
Affected products
References
- https://plugins.svn.wordpress.org/supportcandy/
- https://plugins.trac.wordpress.org/browser/supportcandy/tags/3.5.3/includes/admin/recent-activities/class-wpsc-ra-logs.php#L207
- https://plugins.trac.wordpress.org/browser/supportcandy/tags/3.5.3/includes/custom-field-types/class-wpsc-df-agent-created.php#L492
- https://plugins.trac.wordpress.org/browser/supportcandy/tags/3.5.3/includes/custom-field-types/class-wpsc-df-customer.php#L464
- https://plugins.trac.wordpress.org/browser/supportcandy/tags/3.5.3/includes/custom-field-types/class-wpsc-df-customer.php#L681
- https://plugins.trac.wordpress.org/changeset/3718257/supportcandy/trunk/includes/custom-field-types/class-wpsc-df-customer.php
- https://www.wordfence.com/threat-intel/vulnerabilities/id/9703fa76-fd73-4cd8-aa41-8adcb55190be?source=cve
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