CVE-2026-42138CWE-79

Dify Vulnerable to Stored XSS via SVG-file upload

Medium · published May 4, 2026

CVSS v4.0
6.9
EPSS
0%
Percentile
25.9
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v4.0
6.9 · MEDIUM
Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
EPSS
0.00337 · 25.9th percentile
Weakness
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Published
2026-05-04T17:34Z
EPSS history
Timeline
  • 04 MAY 17:34Z
    Dify Vulnerable to Stored XSS via SVG-file upload
    cvelistv5