Mastodon has improper authorship check on audience extension for existing posts
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.
01
describes (1)
Related CVEs.
| ID | severity | exploitable | ||
|---|---|---|---|---|
| CVE-2024-37903US | —OT elevated | — | ||
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 ext… | ||||
02
references
External citations — patches, advisories, analysis.
- https://github.com/mastodon/mastodon/commit/a1c7aae28aecf06659c5b18cfa131b37cd1512a3FIX
- https://github.com/mastodon/mastodon/commit/d4bf22b632ea8b1174375c4966a6768ab66393b6FIX
- https://github.com/mastodon/mastodon/releases/tag/v4.1.18ARTICLE
- https://github.com/mastodon/mastodon/releases/tag/v4.2.10ARTICLE
- https://github.com/mastodon/mastodon/security/advisories/GHSA-xjvf-fm67-4qc3ADVISORY
- https://nvd.nist.gov/vuln/detail/CVE-2024-37903WEB
scry
Advisories like this name the exposed products attackers go after on your perimeter. See what is exposed on your perimeter with a free passive scan.
Free scan