CVE-2024-25623
Published Feb 19, 2024
Last updated 9 months ago
Overview
- Description
- Mastodon is a free, open-source social network server based on ActivityPub. Prior to versions 4.2.7, 4.1.15, 4.0.15, and 3.5.19, when fetching remote statuses, Mastodon doesn't check that the response from the remote server has a `Content-Type` header value of the Activity Streams media type, which allows a threat actor to upload a crafted Activity Streams document to a remote server and make a Mastodon server fetch it, if the remote server accepts arbitrary user uploads. The vulnerability allows a threat actor to impersonate an account on a remote server that satisfies all of the following properties: allows the attacker to register an account; accepts arbitrary user-uploaded documents and places them on the same domain as the ActivityPub actors; and serves user-uploaded document in response to requests with an `Accept` header value of the Activity Streams media type. Versions 4.2.7, 4.1.15, 4.0.15, and 3.5.19 contain a fix for this issue.
- Source
- security-advisories@github.com
- NVD status
- Awaiting Analysis
Social media
- Hype score
- Not currently trending
Risk scores
CVSS 3.1
- Type
- Secondary
- Base score
- 8.5
- Impact score
- 4.7
- Exploitability score
- 3.1
- Vector string
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:H/A:N
- Severity
- HIGH
Weaknesses
- security-advisories@github.com
- CWE-434