---
title: "CVE-2025-61913: Flowise is vulnerable to arbitrary file write through its WriteFileTool"
url: https://erroneo.us/security/cve/CVE-2025-61913/
description: "CVE-2025-61913 (flowise (npm)): Flowise is a drag & drop user interface to build a customized large language model flow. In versions prior to 3.0.8…"
type: vulnerability-record
section: "Security Digest"
date_published: 2025-10-08
date_modified: 2025-11-15
publisher: erroneo.us
author: erroneo.us Security Desk
cve: "CVE-2025-61913"
kev: false
cvss: 10
epss: 0.1295
license: All rights reserved. Quote with attribution and a link.
---

# CVE-2025-61913: Flowise is vulnerable to arbitrary file write through its WriteFileTool

**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 13.0% , percentile 96: FIRST’s model estimates a 13.0% chance of exploitation activity in the next 30 days, higher than 96% of all scored CVEs (very high). EPSS is a probability, not a verdict.
- Needs an account (low (any account)). Exposure depends on who can log in.
- Only applies if your dependency tree includes flowise (npm) < 3.0.8, fixed in 3.0.8 ; flowise-components (npm) < 3.0.8, fixed in 3.0.8 ; Flowise (npm) <= 3.0.5, fixed in 3.0.8 . Check your lockfile, including transitive dependencies.

## What it is

Flowise is a drag & drop user interface to build a customized large language model flow. In versions prior to 3.0.8, WriteFileTool and ReadFileTool in Flowise do not restrict file path access, allowing authenticated attackers to exploit this vulnerability to read and write arbitrary files to any path in the file system, potentially leading to remote command execution. Flowise 3.0.8 fixes this vulnerability.

## Affected packages

- npm `flowise` < 3.0.8 → fixed: 3.0.8
- npm `flowise-components` < 3.0.8 → fixed: 3.0.8
- npm `Flowise` <= 3.0.5 → fixed: 3.0.8

## Affected products (CVE record)

- FlowiseAI Flowise: < 3.0.8

## Severity

- GitHub_M CVSS 3.1: 10 `CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H`
- GitHub CVSS 3.1: 9.9 `CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H`

## Exploitation

- CISA KEV: not listed (no confirmed in-the-wild exploitation known to CISA).
- CISA SSVC assessment: exploitation poc , automatable no , technical impact total .
- FIRST EPSS (model of 2026-10-21): 12.95% probability of exploitation activity in the next 30 days; percentile 96.

## Sources

- [GitHub Advisory GHSA-jv9m-vf54-chjj](https://github.com/advisories/GHSA-jv9m-vf54-chjj)
- [CVE.org record CVE-2025-61913](https://www.cve.org/CVERecord?id=CVE-2025-61913)
- [NVD entry CVE-2025-61913](https://nvd.nist.gov/vuln/detail/CVE-2025-61913)
- [github.com](https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-jv9m-vf54-chjj)
- [github.com](https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-j44m-5v8f-gc9c)
- [github.com](https://github.com/FlowiseAI/Flowise/commit/1fb12cd93143592a18995f63b781d25b354d48a3)
- [github.com](https://github.com/FlowiseAI/Flowise/releases/tag/flowise%403.0.8)
- [github.com](https://github.com/FlowiseAI/Flowise/pull/5275)

---
Source page: https://erroneo.us/security/cve/CVE-2025-61913/ · Security Digest: https://erroneo.us/security/ · More: https://erroneo.us/llms.txt