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CVE-2026-6619— langgenius dify ImagePreview image-preview.tsx openInNewTab cross site scripting

Quick assessment

Affected
langgenius dify
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

dify是LangGenius开源的一个开源的 LLM 应用程序开发平台。 dify 1.13.3及之前版本存在安全漏洞，该漏洞源于对文件web/app/components/base/image-uploader/image-preview.tsx中ImagePreview组件openInNewTab函数的参数filename操作不当，可能导致跨站脚本攻击。

CVSS 3.5 · Low EPSS 0.21% · P11

Possible ATT&CK Techniques 1 AI

T1059 · Command and Scripting Interpreter
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I. Basic Information for CVE-2026-6619

Vulnerability Information
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Vulnerability Title
langgenius dify ImagePreview image-preview.tsx openInNewTab cross site scripting
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability has been found in langgenius dify up to 1.13.3. Impacted is the function openInNewTab of the file web/app/components/base/image-uploader/image-preview.tsx of the component ImagePreview. The manipulation of the argument filename leads to cross site scripting. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
Source: CVE Program / CVE List V5
Vulnerability Title
dify 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
dify是LangGenius开源的一个开源的 LLM 应用程序开发平台。 dify 1.13.3及之前版本存在安全漏洞，该漏洞源于对文件web/app/components/base/image-uploader/image-preview.tsx中ImagePreview组件openInNewTab函数的参数filename操作不当，可能导致跨站脚本攻击。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
langgenius dify 1.13.0 cpe:2.3:a:langgenius:dify:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-6619

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III. Intelligence Information for CVE-2026-6619

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Proof of Concept for CVE-2026-6619 (1)

Same Patch Batch · langgenius · 2026-04-20 · 4 CVEs total

CVE-2026-6617 6.3 MEDIUM langgenius dify ApiToolManageService api_tools_manage_service.py get_api_tool_provider_rem
CVE-2026-6618 6.3 MEDIUM langgenius dify ApiBasedToolSchemaParser parser.py parse_openai_plugin_json_to_tool_bundle
CVE-2026-34082 Dify has IDOR in deleting someone else's chat conversation

IV. Related Vulnerabilities

Same product: dify
Same vendor: langgenius
Same weakness: CWE-79

V. Comments for CVE-2026-6619

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