Headline

GHSA-fccx-2pwj-hrq7: Flowise Cross-site Scripting in /api/v1/public-chatflows/id

Flowise is a drag & drop user interface to build a customized large language model flow. In version 1.4.3 of Flowise, a reflected cross-site scripting vulnerability occurs in the /api/v1/public-chatflows/id endpoint. If the default configuration is used (unauthenticated), an attacker may be able to craft a specially crafted URL that injects Javascript into the user sessions, allowing the attacker to steal information, create false popups, or even redirect the user to other websites without interaction. If the chatflow ID is not found, its value is reflected in the 404 page, which has type text/html. This allows an attacker to attach arbitrary scripts to the page, allowing an attacker to steal sensitive information. This XSS may be chained with the path injection to allow an attacker without direct access to Flowise to read arbitrary files from the Flowise server. As of time of publication, no known patches are available.

2 months ago

ghsa

Open in Source

#xss #vulnerability #web #nodejs #git #java #auth

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GitHub Advisory Database
GitHub Reviewed
CVE-2024-36423

Flowise Cross-site Scripting in /api/v1/public-chatflows/id

Moderate severity GitHub Reviewed Published Aug 5, 2024 to the GitHub Advisory Database • Updated Aug 5, 2024

Package

npm flowise (npm)

Affected versions

<= 1.4.3

Description

Flowise is a drag & drop user interface to build a customized large language model flow. In version 1.4.3 of Flowise, a reflected cross-site scripting vulnerability occurs in the /api/v1/public-chatflows/id endpoint. If the default configuration is used (unauthenticated), an attacker may be able to craft a specially crafted URL that injects Javascript into the user sessions, allowing the attacker to steal information, create false popups, or even redirect the user to other websites without interaction. If the chatflow ID is not found, its value is reflected in the 404 page, which has type text/html. This allows an attacker to attach arbitrary scripts to the page, allowing an attacker to steal sensitive information. This XSS may be chained with the path injection to allow an attacker without direct access to Flowise to read arbitrary files from the Flowise server. As of time of publication, no known patches are available.

References

https://nvd.nist.gov/vuln/detail/CVE-2024-36423
https://github.com/FlowiseAI/Flowise/blob/flowise-ui%401.4.0/packages/server/src/index.ts#L322-L322
https://securitylab.github.com/advisories/GHSL-2023-232_GHSL-2023-234_Flowise

Published to the GitHub Advisory Database

Aug 5, 2024