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OpenAdvisories
Medium · 6.9 CVE-2026-42138 EUVD-2026-27071

Dify Vulnerable to Stored XSS via SVG-file upload

Published May 4, 2026 · Updated May 4, 2026 · Assigned by GitHub_M

Description

Dify is an open-source LLM app development platform. Prior to version 1.13.1, using the method POST /api/files/upload, any unauthenticated user can upload an SVG file with XSS. The method POST /v1/files/upload, which requires authentication through the application API, is also vulnerable. This issue has been patched in version 1.13.1.

Affected products

VendorProductAffectedFixed
langgenius dify < 1.13.1 —

References