CVE-2026-94378 json
SupportCandy <= 3.5.3 - Authenticated (Subscriber+) Stored Cross-Site Scripting via 'name' Parameter
published 2026-10-03 37 d ago modified 2026-10-06 34 d ago also EUVD-2026-91878
- cvss
- 6.4
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.2%
- EPSS 0.2% chance of exploitation in 30 days, percentile 9%
- public exploits
- 0
- none known
Summary
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.
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 37 d ago
Exploit prediction
0.19% chance of exploitation in the next 30 days, higher than 9% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 6.4 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N |
Affected products
- psmplugins SupportCandy – AI Customer Support Ticket System & Live Chatbot Agent
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
- Technology feeds
References
- wordfence.com /threat-intel/vulnerabilities/id/9703fa76-fd73-4cd8-aa41-8adcb55190be?source=cve
- plugins.trac.wordpress.org /browser/supportcandy/tags/3.5.3/includes/admin/recent-activities/class-wpsc-ra-logs.php#L207
- plugins.trac.wordpress.org /browser/supportcandy/tags/3.5.3/includes/custom-field-types/class-wpsc-df-customer.php#L464
- plugins.trac.wordpress.org /browser/supportcandy/tags/3.5.3/includes/custom-field-types/class-wpsc-df-customer.php#L681
- plugins.trac.wordpress.org /browser/supportcandy/tags/3.5.3/includes/custom-field-types/class-wpsc-df-agent-created.php#L492
- plugins.svn.wordpress.org /supportcandy/
- plugins.trac.wordpress.org /changeset/3718257/supportcandy/trunk/includes/custom-field-types/class-wpsc-df-customer.php
Sources
- CVE List CVE-2026-94378
- NVD CVE-2026-94378
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.