{"schemaVersion":3,"id":"CVE-2025-57821","aliases":["GHSA-7pwc-wh6m-44q3"],"status":"published","duplicateOf":null,"title":null,"description":"Basecamp's Google Sign-In adds Google sign-in to Rails applications. Prior to version 1.3.0, it is possible to craft a malformed URL that passes the \"same origin\" check, resulting in the user being redirected to another origin. Rails applications configured to store the flash information in a session cookie may be vulnerable, if this can be chained with an attack that allows injection of arbitrary data into the session cookie. This issue has been patched in version 1.3.0. 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