CVE-2024-37903CWE-862

Mastodon has improper authorship check on audience extension for existing posts

High · published July 5, 2024

CVSS v3.1
8.2
EPSS
1%
Percentile
44.0
In the wild
Unconfirmed
What it is

Mastodon is a self-hosted, federated microblogging platform. Starting in version 2.6.0 and prior to versions 4.1.18 and 4.2.10, by crafting specific activities, an attacker can extend the audience of a post they do not own to other Mastodon users on a target server, thus gaining access to the contents of a post not intended for them. Versions 4.1.18 and 4.2.10 contain a patch for this issue.

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:H/I:L/A:N
CVSS v4.0
Not supplied
EPSS
0.00530 · 44.0th percentile
Weakness
CWE-862 · Missing Authorization
Published
2024-07-05T17:24Z
EPSS history
Timeline
  • 05 JUL 17:24Z
    Mastodon has improper authorship check on audience extension for existing posts
    cvelistv5