ApostropheCMS: Cross-domain session token in URL confers session takeover
Summary Apostrophe's cross-domain session migration emits a single-use session token as a URL query parameter and stores it in the Mongo cache. Any client that presents the token silently adopts the target user's full session (including passport.user) with no credentials. Details packages/apostrophe/modules/@apostrophecms/i18n/index.js: Token generation on cross-host/locale flows (L479–487) and passport-bridge cross-locale redirect (passport-bridge/index.js L557–593) places the token in the URL. acceptCrossDomainSessionToken (L258–298) reads ?aposCrossDomainSessionToken, Object.assigns the stored session (cookie + …