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CVE-2025-62605

MEDIUM

4.3

Descricao

Mastodon is a free, open-source social network server based on ActivityPub. In Mastodon version 4.4, support for verifiable quote posts with quote controls was added, but it is possible for an attacker to bypass these controls in Mastodon versions prior to 4.4.8 and 4.5.0-beta.2. Mastodon internally treats reblogs as statuses. Since they were not special-treated, an attacker could reblog any post, then quote their reblog, technically quoting themselves, but having the quote feature a preview of the post they did not get authorization for with all of the affordances that would be otherwise denied by the quote controls. This issue has been patched in versions 4.4.8 and 4.5.0-beta.2.

Detalhes CVE

Pontuacao CVSS v3.14.3

SeveridadeMEDIUM

Vetor CVSSCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

Vetor de ataqueNETWORK

ComplexidadeLOW

Privilegios necessariosLOW

Interacao do usuarioNONE

Publicado10/21/2025

Ultima modificacao12/12/2025

Fontenvd

Avistamentos honeypot0

Produtos afetados

joinmastodon:mastodon

Fraquezas (CWE)

CWE-754

Referencias

https://github.com/mastodon/mastodon/commit/2dc4552229b55e2e4adaef675e68ed7ae123d78e(security-advisories@github.com)

https://github.com/mastodon/mastodon/commit/405a49df44033e7d179f3d44d59fb68a67d54789(security-advisories@github.com)

https://github.com/mastodon/mastodon/releases/tag/v4.4.8(security-advisories@github.com)

https://github.com/mastodon/mastodon/releases/tag/v4.5.0-beta.2(security-advisories@github.com)

https://github.com/mastodon/mastodon/security/advisories/GHSA-8h43-rcqj-wpc6(security-advisories@github.com)

Correlacoes IOC

Sem correlacoes registradas

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