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CVE-2025-62605

MEDIUM

4.3

Description

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.

Details CVE

Score CVSS v3.14.3

SeveriteMEDIUM

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

Vecteur d'attaqueNETWORK

ComplexiteLOW

Privileges requisLOW

Interaction utilisateurNONE

Publie10/21/2025

Derniere modification12/12/2025

Sourcenvd

Observations honeypot0

Produits affectes

joinmastodon:mastodon

Faiblesses (CWE)

CWE-754

References

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)

Correlations IOC

Aucune correlation enregistree

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