Unauthenticated file upload in Gogs attachment endpoints (/issues/attachments, /releases/attachments)
Gogs (self-hosted Git service) versions 0.13.4 and below expose attachment upload endpoints without requiring authentication when the global configuration setting RequireSigninView is disabled (the default). In this configuration, remote unauthenticated users can upload arbitrary files to the server via the /releases/attachments and /issues/attachments endpoints (under repositories), effectively bypassing intended access control for attachment uploads. CSRF protections do not prevent the attack in this scenario (per provided content). The issue is fixed in Gogs 0.14.1.
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An unauthenticated access control bypass in GOGS.
A critical missing-authorization issue in Gogs where, when public access is enabled (RequireSigninView disabled), attachment endpoints can be accessed without authentication, enabling arbitrary file upload via /issues/attachments and /releases/attachments.
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