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OpenAdvisories

Vendor

mastodon

46 known vulnerabilities.

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  • Critical 9.4

    Mastodon Remote user impersonation and takeover

    Mastodon is a free, open-source social network server based on ActivityPub Mastodon allows configuration of LDAP for authentication. Due to insufficient origin validation in all Mastodon, attackers can impersonate and take over any remote account. Every Masto…

  • Critical 10.0
    CVE-2023-36460 EPSS 40%

    Mastodon vulnerable to arbitrary file creation through media attachments

    Mastodon is a free, open-source social network server based on ActivityPub. Starting in version 3.5.0 and prior to versions 3.5.9, 4.0.5, and 4.1.3, attackers using carefully crafted media files can cause Mastodon's media processing code to create arbitrary f…

  • Critical 9.3

    Mastodon vulnerable to Cross-site Scripting through oEmbed preview cards

    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 inclu…

  • Critical 9.8

    Improper Restriction of Excessive Authentication Attempts in mastodon/mastodon

    Improper Restriction of Excessive Authentication Attempts in GitHub repository mastodon/mastodon prior to 4.0.0.