CVE-2026-42840 Details
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.
A cross-site scripting vulnerability has been identified in ERPNext version 16.16.0. This issue allows authenticated users to inject arbitrary HTML or JavaScript into the email_id or mobile_no fields of a Customer record. The injected content is then rendered without proper escaping in the Point of Sale (POS) interface, affecting all operators who select that customer.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Jun 3, 2026CISA-ADP
Assessed Jun 3, 2026References to Advisories, Solutions, and Tools
By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.
| URL | Source(s) | Tag(s) |
|---|---|---|
| https://fluidattacks.com/es/advisories/weeknd | CISA-ADP | Content Wall |
| https://fluidattacks.com/es/advisories/weeknd | [email protected] | Content Wall |
| https://github.com/frappe/erpnext | [email protected] | ProductSource CodeVendor |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-79 | Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| ERPNext | 16.16.0 (semver) |
CPE
Remediation
| |
Change History
5 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jul 22, 2026 | CVE Translated | [email protected] |
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Jun 3, 2026 | CVE Modified | CISA-ADP |
| Jun 3, 2026 | New CVE Received | [email protected] |