CVE-2026-3837 PUBLISHED

Frappe Framework 16.10.0 - Stored DOM XSS in Multiple Field Formatters

Assigner: Fluid Attacks
Reserved: 09.03.2026 Published: 22.04.2026 Updated: 22.04.2026

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.

Metrics

CVSS 4.0

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
CVSS Score: 4.6

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Network	Confidentiality	None	Confidentiality	Low
Attack Complexity	Low	Integrity	None	Integrity	Low
Attack Requirements	None	Availability	None	Availability	None
Privileges Required	High
User Interaction	Active

CVSS 4.0

Product Status

Vendor	Frappe
Product	Frappe
Versions	Default: unaffected Version 16.10.0 is affected

Credits

Fluid Attacks' AI SAST Scanner finder
Oscar Uribe finder

References

Problem Types

CWE-79 Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') CWE

Impacts

CAPEC-592 Stored XSS