Description
Dify is an open-source LLM app development platform. Prior to 1.11.2, Dify is vulnerable to a stored XSS issue when rendering Mermaid diagrams within chats. This occurs because Dify’s default Mermaid configuration uses securityLevel: loose, which allows potentially unsafe content to execute. This vulnerability is fixed in 1.11.2.
References (3)
Core 3
Core References
Vendor Advisory x_refsource_confirm
https://github.com/langgenius/dify/security/advisories/GHSA-qpv6-75c2-75h4
Issue Tracking x_refsource_misc
https://github.com/langgenius/dify/pull/29811
Scores
CVSS v3
5.4
EPSS
0.0001
EPSS Percentile
1.9%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
no
Technical Impact
partial
Details
CWE
CWE-79
Status
published
Products (1)
dify/dify
< 1.11.2
Published
Mar 03, 2026
Tracked Since
Mar 04, 2026