CVE-2024-37903

HIGH EPSS 40.5%
Published Jul 5, 20241y ago · Modified Jun 17, 20261w ago
8.2 CVSS 3.1
High
Find Similar
Published Jul 5, 2024 1y ago
Last Modified Jun 17, 2026 1w ago

Description

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.

CVSS Details

Base Score
8.2
Exploitability
3.9
Impact
4.2
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality High
Integrity Low
Availability None

Threat Intelligence

EPSS Exploit Probability
40.5% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-862 Missing Authorization Authorization

Affected Products 2

VendorProductVersionRange
joinmastodonmastodon*≥2.6.0  –  <4.1.18
joinmastodonmastodon*≥4.2.0  –  <4.2.10

References 5

  • github.com https://github.com/mastodon/mastodon/commit/a1c7aae28aecf06659c5b18cfa131b37cd1512a3
    Patch
  • github.com https://github.com/mastodon/mastodon/commit/d4bf22b632ea8b1174375c4966a6768ab66393b6
    Patch
  • github.com https://github.com/mastodon/mastodon/releases/tag/v4.1.18
    Release Notes
  • github.com https://github.com/mastodon/mastodon/releases/tag/v4.2.10
    Release Notes
  • github.com https://github.com/mastodon/mastodon/security/advisories/GHSA-xjvf-fm67-4qc3
    Vendor Advisory

Remediation

  • github.com https://github.com/mastodon/mastodon/commit/a1c7aae28aecf06659c5b18cfa131b37cd1512a3
    Patch
  • github.com https://github.com/mastodon/mastodon/commit/d4bf22b632ea8b1174375c4966a6768ab66393b6
    Patch