An authenticated user can persist arbitrary HTML/JavaScript in the emailid or mobileno 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.
{
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/42xxx/CVE-2026-42840.json",
"cna_assigner": "Fluid Attacks",
"cwe_ids": [
"CWE-79"
]
}