VulnerabilityAnalyzed
CVE-2026-42138
Prior to version 1.13.1, using the method POST /api/files/upload, any unauthenticated user can upload an SVG file with XSS.
MEDIUM 6.9EPSS 0.24%
Does this matter?
Lower severity and a low EPSS score (0.24%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 4.0
- 6.9 MEDIUMCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M
- EPSS
- 0.24% probability · 14th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-79
- Affected
- langgenius/dify
- Source
- security-advisories@github.com
References
- https://github.com/langgenius/dify/releases/tag/1.13.1Release Notes
- https://github.com/langgenius/dify/security/advisories/GHSA-cg94-8v83-7hjjExploit, Vendor Advisory
- https://github.com/langgenius/dify/security/advisories/GHSA-cg94-8v83-7hjjExploit, Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.