CVE-2023-52139CWE-285

Misskey vulnerable to improper authorization when accessing with third-party application

Critical · published December 29, 2023

CVSS v3.1
9.1
EPSS
1%
Percentile
45.2
In the wild
Unconfirmed
What it is

🚨 Who knew a little misconfiguration could lead to such a big mess? Third-party apps can snoop around your Misskey data without permission—like a delivery person casually peeking into your package! 🔥 Think of it like giving a key to your house to a friend but forgetting that they can also let in anyone else they choose. This misstep in permissions means unauthorized apps could access sensitive user data, just like that friend allowing random guests to roam freely in your living room! An attacker could potentially read and leak confidential information, such as secret keys and SMTP passwords, if they access the system as an administrator. Regular users aren't off the hook either, as they could create invitation codes and expose non-public information. Imagine an open gate in your backyard; anyone can stroll in and grab what’s not meant for them!

Put simply

Think of it like giving a key to your house to a friend but forgetting that they can also let in anyone else they choose. This misstep in permissions means unauthorized apps could access sensitive user data, just like that friend allowing random guests to roam freely in your living room! This vulnerability arises from incorrectly specified endpoints and WebSocket APIs in Misskey, allowing unauthorized access to sensitive operations by third-party applications even without user consent.

What to do

An attacker could potentially read and leak confidential information, such as secret keys and SMTP passwords, if they access the system as an administrator. Regular users aren't off the hook either, as they could create invitation codes and expose non-public information. Imagine an open gate in your backyard; anyone can stroll in and grab what’s not meant for them! Immediately patch your Misskey installation to version 2023.12.1 to close these vulnerabilities. Review your application’s permission settings to ensure they are correctly configured, and consider revoking any access given to third-party applications that may no longer be trusted. You've got this! With a quick update, you’ll lock down your Misskey platform in no time! 🛡️

The record
Technical detail
CVSS v3.1
9.1 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00549 · 45.2th percentile
Weakness
CWE-285 · Improper Authorization
Published
2023-12-29T17:21Z
EPSS history
Timeline
  • 29 DEC 17:21Z
    Misskey vulnerable to improper authorization when accessing with third-party application
    cvelistv5