CVE-2026-85021
Received Received - Intake

Cross-Site Scripting in Dify 1.13.0 Splash Layout

Publication date: 2026-09-03

Last updated on: 2026-09-03

Assigner: VulDB

Description
A vulnerability was determined in langgenius dify 1.13.0. Affected is the function router.replace of the file web/app/(shareLayout)/components/splash.tsx of the component Splash Layout. This manipulation of the argument redirect_url causes cross site scripting. The attack is possible to be carried out remotely. The exploit has been publicly disclosed and may be utilized. The vendor was contacted early about this disclosure but did not respond in any way.

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Meta Information

Published
2026-09-03
Last Modified
2026-09-03
Generated
2026-09-03
AI Q&A
2026-09-03
EPSS Evaluated
N/A
NVD
CVE-2026-85021
EUVD
EUVD-2026-70297

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
langgenius dify 1.13.0

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-94 The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment.
CWE-79 The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

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Executive Summary

This vulnerability is a cross-site scripting (XSS) issue in langgenius dify version 1.13.0. It exists in the Splash Layout component, specifically in the router.replace function of the file web/app/(shareLayout)/components/splash.tsx. The vulnerability is triggered by manipulating the redirect_url argument, which allows an attacker to inject malicious scripts into web pages viewed by other users.

Impact Analysis

This vulnerability can allow attackers to execute arbitrary JavaScript code in the context of a user's browser session. This could lead to theft of session cookies, sensitive data exposure, or unauthorized actions performed on behalf of the user. Users of the affected application may be at risk of phishing attacks or malware delivery.

Compliance Impact

This vulnerability could lead to non-compliance with GDPR and HIPAA by exposing user data through XSS attacks. GDPR requires protection of personal data, and HIPAA mandates safeguards for protected health information. A successful exploit may result in unauthorized data access, violating these regulations and potentially leading to legal penalties.

Mitigation Strategies

Update or patch the langgenius dify application to a version that addresses the XSS vulnerability in the Splash Layout component. If no patch is available, consider disabling the affected component or restricting access to the web/app/(shareLayout)/components/splash.tsx file.

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