CVE-2026-85021

langgenius dify Splash Layout splash.tsx router.replace cross site scripting

State: Published
Severity: 5.3 Medium
Published: Sep 3, 2026
Updated: Sep 3, 2026
Reserved: Sep 2, 2026

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.

Scores

CVSS	Score	Vector	Source
4.0	5.3 Medium	CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P	VulDB
3.1	4.3 Medium	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N/E:P/RL:X/RC:C	VulDB
3.0	4.3 Medium	CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N/E:P/RL:X/RC:C	VulDB
2.0	5.0 Medium	AV:N/AC:L/Au:N/C:N/I:P/A:N/E:POC/RL:ND/RC:C	VulDB

Weaknesses

CWE-79 Cross Site Scripting
CWE-94 Code Injection

Affected Products

Product	Versions
difylanggenius	1.13.0Affected

References

VDB-398288 | langgenius dify Splash Layout splash.tsx router.replace cross site scriptingvdb-entrytechnical-description
VDB-398288 | CTI Indicators (IOB, IOC, TTP, IOA)signaturepermissions-required
CVE-2026-85021 | CVE Analysis and Reportthird-party-advisory
Submit #880601 | langgenius dify 1.13.0 DOM-Based XSS, Open Redirectthird-party-advisory
https://huntr.com/bounties/8ff349b3-db5f-4b56-9ccf-a19abd96e30frelated
https://github.com/langgenius/dify/security/advisories/GHSA-7qgm-pqv4-668xbroken-link
https://gist.github.com/TrebledJ/0e8466e5c39a6fb7dca8a3acdfbe2ddc#file-cvd_dify_vuln1_20260705-mdexploit
https://github.com/langgenius/dify/product

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