CVE-2026-3837 MEDIUM

CVE-2026-3837: Frappe Framework 16.10.0 - Stored DOM XSS in Multiple Field Formatters

Vendor Frappe
Product Frappe
Weakness CWE-79 · XSS
Published April 22, 2026
Last update April 27, 2026

CVSS base score

4.6/10
Attack vector Network
Attack complexity Low
Privileges required High
User interaction
Confidentiality
Integrity

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N

What the vulnerability does

01Description

An authenticated attacker can persist crafted values in multiple field types and trigger client-side script execution when another user opens the affected document in Desk. The vulnerable formatter implementations interpolate stored values into raw HTML attributes and element content without escaping This issue affects Frappe: 16.10.0.

Key dates

02Disclosure timeline

April 22, 2026 CVE published
April 27, 2026 Record updated