CVE-2025-63388

critical · 9.1

A Cross-Origin Resource Sharing (CORS) misconfiguration vulnerability exists in Dify v1.9.1 in the /console/api/system-features endpoint. The endpoint implements an overly permissive CORS policy that reflects arbitrary Origin headers and sets Access-Control-Allow-Credentials: true, allowing any external domain to make authenticated cross-origin requests. NOTE: the Supplier disputes this, providing the rationale of "sending requests with credentials does not provide any additional access compared to unauthenticated requests."

9.1

CVSS

0.2%

EPSS (exploit prob.)

13th

EPSS percentile

2025-12-18

Published

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Weaknesses

CWE-346

Affected products

Vendor	Product	Affected versions
langgenius	dify	1.9.1

Check a specific version with /api/v1/cve/match.

References

https://gist.github.com/Cristliu/5ded6d03e41d7d66ecb1b568bae3ff6c
https://gist.github.com/Cristliu/c2bc7d05abd89db8eb542a453a528d77
https://github.com/langgenius/dify/discussions

Query this programmatically:

curl https://evil-db.io/api/v1/cve/CVE-2025-63388