Vulnerabilities
Vulnerable Software

Vulnerability Details CVE-2026-42138

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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.001
EPSS Ranking 25.4%
CVSS Severity
CVSS v3 Score 6.1
Products affected by CVE-2026-42138


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