Mastodon vulnerable to Cross-site Scripting through oEmbed preview cards
28Vexday Risk Score
Sem sinal de exploração. Nenhum artefato público de exploração conhecido até agora.
ssvc Trackcvss 9.3epss 1.2%
probabilidade de exploração
1.2%top 34% das CVEs
exploração observada
nãonenhuma fonte reporta
Mastodon is a free, open-source social network server based on ActivityPub. Starting in version 1.3 and prior to versions 3.5.9, 4.0.5, and 4.1.3, an attacker using carefully crafted oEmbed data can bypass the HTML sanitization performed by Mastodon and include arbitrary HTML in oEmbed preview cards. This introduces a vector for cross-site scripting (XSS) payloads that can be rendered in the user's browser when a preview card for a malicious link is clicked through. Versions 3.5.9, 4.0.5, and 4.1.3 contain a patch for this issue.
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N
Produtos afetados
mastodon · mastodonReferências
https://github.com/mastodon/mastodon/commit/6d8e0fae3e96f3cf4febe03fa7fcf5b95ff761b2https://github.com/mastodon/mastodon/releases/tag/v3.5.9https://github.com/mastodon/mastodon/releases/tag/v4.0.5https://github.com/mastodon/mastodon/releases/tag/v4.1.3https://github.com/mastodon/mastodon/security/advisories/GHSA-ccm4-vgcc-73hphttp://www.openwall.com/lists/oss-security/2023/07/06/5