PT-2026-46044 · Frappe · Erpnext

Oscar Naveda · CVE-2026-42840 · Published 2026-06-03 · Updated 2026-07-22

Positive Technologies (AI Summary)

CVSS v4.0

5.1

Medium

Base vector

AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Name of the Vulnerable Software and Affected Versions ERPNext version 16.16.0

Description An authenticated user can persist arbitrary HTML or JavaScript within the email id or mobile no fields of a Customer record. This leads to unescaped rendering in the Point of Sale (POS) interface for any operator who selects the affected customer.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2026-42840

Affected Products

Erpnext

References · 9

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/42xxx/CVE-2026-42840.json · Exploit
• 🔥 https://fluidattacks.com/es/advisories/weeknd · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2026-42840 · Security Note
• https://osv.dev/vulnerability/CVE-2026-42840 · Vendor Advisory
• https://github.com/frappe/erpnext · Note
• https://twitter.com/fluidattacks/status/2067007308757135644 · Twitter Post
• https://twitter.com/infoflowcloud/status/2062405559744102702 · Twitter Post
• https://t.me/cveNotify/213301 · Telegram Post
• https://twitter.com/CVEnew/status/2062404850860818713 · Twitter Post