CVE-2026-85021 Details
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.
A cross-site scripting (XSS) vulnerability has been identified in Langgenius Dify version 1.13.0. The issue arises in the Splash Layout component, specifically within the router.replace function in the file web/app/(shareLayout)/components/splash.tsx. The vulnerability is triggered by manipulating the redirect_url parameter, which is not properly sanitized before being used. This flaw allows remote attackers to execute arbitrary JavaScript in the context of the user's browser, potentially leading to credential theft or unauthorized actions on behalf of the user.
To address this vulnerability, Dify maintainers should implement proper validation and sanitization of the redirect_url parameter before it is used for navigation. This can be done by ensuring the URL is safe and does not contain harmful JavaScript payloads.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Sep 3, 2026CISA-ADP
Assessed Sep 3, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://huntr.com/bounties/8ff349b3-db5f-4b56-9ccf-a19abd96e30f | CISA-ADP | ExploitTechnical Description |
| https://gist.github.com/TrebledJ/0e8466e5c39a6fb7dca8a3acdfbe2ddc#file-cvd_dify_vuln1_20260705-md | [email protected] | ExploitTechnical Analysis |
| https://github.com/langgenius/dify/ | [email protected] | Vendor |
| https://github.com/langgenius/dify/security/advisories/GHSA-7qgm-pqv4-668x | [email protected] | AdvisoryBroken LinkVendor |
| https://huntr.com/bounties/8ff349b3-db5f-4b56-9ccf-a19abd96e30f | [email protected] | ExploitTechnical Description |
| https://vuldb.com/cve/CVE-2026-85021 | [email protected] | AdvisoryPermission Required |
| https://vuldb.com/submit/880601 | [email protected] | Issue TrackingPermission Required |
| https://vuldb.com/vuln/398288 | [email protected] | AdvisoryPermission Required |
| https://vuldb.com/vuln/398288/cti | [email protected] | Content Wall |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-79 | Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') | [email protected] |
| CWE-94 | Improper Control of Generation of Code ('Code Injection') | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| langgenius Dify | 1.13.0 (semver) |
CPE
Remediation
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Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Sep 3, 2026 | CVE Modified | CISA-ADP |
| Sep 3, 2026 | New CVE Received | [email protected] |