AI / ML CVE-2026-26023
MEDIUMSeverity by source
AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Primary rating from GitHub Advisory · only source for this CVE.
CVSS VectorGitHub Advisory
Lifecycle Timeline
4DescriptionGitHub Advisory
Dify is an open-source LLM app development platform. Prior to 1.13.0, a cross site scripting vulnerability has been found in the web application chat frontend when using echarts. User or llm inputs containing echarts containing a specific javascript payload will be executed. This vulnerability is fixed in 1.13.0.
AnalysisAI
Dify versions prior to 1.13.0 contain a stored cross-site scripting vulnerability in the chat frontend's echarts integration that executes malicious JavaScript payloads embedded in user or LLM-generated inputs. An attacker can exploit this to perform actions in the context of other users' browsers, potentially stealing session tokens or conducting phishing attacks. Public exploit code exists for this vulnerability, though a patch is available in version 1.13.0 and later.
Technical ContextAI
Classified as CWE-79 (Cross-site Scripting (XSS)). Affects Dify. Dify is an open-source LLM app development platform. Prior to 1.13.0, a cross site scripting vulnerability has been found in the web application chat frontend when using echarts. User or llm inputs containing echarts containing a specific javascript payload will be executed. This vulnerability is fixed in 1.13.0.
RemediationAI
A vendor patch is available — apply it immediately. Fixed in version 1.13.0.. Implement output encoding and Content Security Policy headers. Restrict network access to the affected service where possible.
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Same weakness CWE-79 – Cross-site Scripting (XSS)
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External POC / Exploit Code
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