CVE-2026-49391: Frappe

Medium severity, CVSS 5.1. EPSS: 0.5% chance of exploitation in the next 30 days.

Frappe is a full-stack web application framework. Prior to 16.19.0 and 15.109.0, Data Import does not escape imported column headers before rendering previews and results, allowing an authenticated importer to persist script content that executes when another user views the import interface. This issue is fixed in versions 16.19.0 and 15.109.0.

Affected products

• Frappe Frappe: from 16.0.0-beta.1, before 16.19.0 (fixed in 16.19.0); before 15.109.0 (fixed in 15.109.0)

Published 2026-08-06. Last modified 2026-09-08.