CVE-2024-32983CWE-863

Misskey allows the impersonation and takeover of remote accounts with unnormalized signed activities

High · published June 3, 2024

CVSS v3.1
8.2
EPSS
0%
Percentile
33.1
In the wild
Unconfirmed
What it is

Misskey is an open source, decentralized microblogging platform. Misskey doesn't perform proper normalization on the JSON structures of incoming signed ActivityPub activity objects before processing them, allowing threat actors to spoof the contents of signed activities and impersonate the authors of the original activities. This vulnerability is fixed in 2024.5.0.

The record
Technical detail
CVSS v3.1
8.2 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:N
CVSS v4.0
Not supplied
EPSS
0.00400 · 33.1th percentile
Weakness
CWE-863 · Incorrect Authorization
Published
2024-06-03T15:16Z
EPSS history
Timeline
  • 03 JUN 15:16Z
    Misskey allows the impersonation and takeover of remote accounts with unnormalized signed activities
    cvelistv5