CVE-2025-26319CWE-434unrestricted-file-upload

CVE-2025-26319

Critical · published March 5, 2025

Patch now

High probability of exploitation

CVSS calls it critical at 9.8. It sits in the 99.0th percentile for exploit probability.

CVSS v3.1
9.8
EPSS
56%
Percentile
99.0
In the wild
Unconfirmed
What it is

🔥 An arbitrary file upload vulnerability lurks in FlowiseAI v2.2.6, waiting for an unsuspecting victim to click! Think of this as a food critic who can sneak any dish into a restaurant without the chef even knowing — once it's on the menu, it can cause chaos! An attacker can upload any file, potentially leading to remote code execution and complete server takeover. Imagine the damage if someone slipped in a malicious executable — it could spell disaster for data security and privacy!

Put simply

Think of this as a food critic who can sneak any dish into a restaurant without the chef even knowing — once it's on the menu, it can cause chaos! This vulnerability allows malicious users to upload arbitrary files to the server via the /api/v1/attachments endpoint, bypassing any file validation checks that would normally protect against such actions.

What to do

An attacker can upload any file, potentially leading to remote code execution and complete server takeover. Imagine the damage if someone slipped in a malicious executable — it could spell disaster for data security and privacy! Patch to version 2.2.7 immediately to secure against this vulnerability. Additionally, implement strict file type validation and limit the file size to mitigate future risks. Regular audits of your file handling processes are also recommended! You've got this! Secure your server now and stand tall as a security hero! 🦸

The record
Technical detail
CVSS v3.1
9.8 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.55869 · 99.0th percentile
Weakness
CWE-434 · Unrestricted Upload of File with Dangerous Type
Published
2025-03-05T03:15Z
Affected products (1)
ProductVersionsFixed in
flowiseai/flowiseall versions—
References (2)
EPSS history
Timeline
  • 04 MAR 00:00Z
    FlowiseAI Flowise v2.2.6 was discovered to contain an arbitrary file upload vulnerability in /api/v1/attachments
    cvelistv5