CVE-2026-42840
Medium
Description
An authenticated user can persist arbitrary HTML/JavaScript in the email_id or mobile_no fields of a Customer record and trigger unescaped rendering in the Point of Sale (POS) interface for every operator who selects that customer. This issue affects ERPNext: 16.16.0.
SeverityMedium
CVSS5.1
Exploit probability—
Product
ERPNext
PublishedJun 3, 2026
First seenJun 3, 2026
Weakness typeCWE-79Cross-site scripting (XSS)
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Frappe ERPNext | 16.16.0 | — |
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