---
title: "CVE-2025-50538: Flowise is vulnerable to stored XSS via \"View Messages\" allows credential theft in FlowiseAI admin panel"
url: https://erroneo.us/security/cve/CVE-2025-50538/
description: "CVE-2025-50538 (flowise (npm)): Flowise before 3.0.5 allows XSS via an IFRAME element when an admin views the chat log."
type: vulnerability-record
section: "Security Digest"
date_published: 2025-10-06
date_modified: 2025-10-13
publisher: erroneo.us
author: erroneo.us Security Desk
cve: "CVE-2025-50538"
kev: false
cvss: 8.2
epss: 0.1404
license: All rights reserved. Quote with attribution and a link.
---

# CVE-2025-50538: Flowise is vulnerable to stored XSS via "View Messages" allows credential theft in FlowiseAI admin panel

**Signal:** High exploit likelihood. EPSS ranks it in the top 5% of all CVEs for likely exploitation in the next 30 days. (Computed from CISA KEV, EPSS and CVSS; not an editorial verdict.)

## Should you act?

- Not in CISA KEV , but CISA’s SSVC assessment records a public proof-of-concept, so attack code exists.
- EPSS 14.0% , percentile 97: FIRST’s model estimates a 14.0% chance of exploitation activity in the next 30 days, higher than 97% of all scored CVEs (very high). EPSS is a probability, not a verdict.
- Needs a user to click or open something. Phishing makes that realistic, but it is not wormable.
- Only applies if your dependency tree includes flowise (npm) < 3.0.8, fixed in 3.0.8 . Check your lockfile, including transitive dependencies.

## What it is

Flowise before 3.0.5 allows XSS via an IFRAME element when an admin views the chat log.

## Affected packages

- npm `flowise` < 3.0.8 → fixed: 3.0.8

## Affected products (CVE record)

- FlowiseAI Flowise: < 3.0.5

## Severity

- mitre CVSS 3.1: 8.2 `CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N`
- GitHub CVSS 3.1: 9.3 `CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N`

## Exploitation

- CISA KEV: not listed (no confirmed in-the-wild exploitation known to CISA).
- CISA SSVC assessment: exploitation poc , automatable no , technical impact partial .
- FIRST EPSS (model of 2026-10-21): 14.04% probability of exploitation activity in the next 30 days; percentile 97.

## Sources

- [GitHub Advisory GHSA-964p-j4gg-mhwc](https://github.com/advisories/GHSA-964p-j4gg-mhwc)
- [CVE.org record CVE-2025-50538](https://www.cve.org/CVERecord?id=CVE-2025-50538)
- [NVD entry CVE-2025-50538](https://nvd.nist.gov/vuln/detail/CVE-2025-50538)
- [github.com](https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-964p-j4gg-mhwc)
- [github.com](https://github.com/FlowiseAI/Flowise/pull/4905)
- [github.com](https://github.com/FlowiseAI/Flowise/releases/tag/flowise%403.0.5)
- [github.com](https://github.com/FlowiseAI/Flowise/commit/9a06a85a8ddcbaeca1342827a5fea9087a587d97)

---
Source page: https://erroneo.us/security/cve/CVE-2025-50538/ · Security Digest: https://erroneo.us/security/ · More: https://erroneo.us/llms.txt