ORY Hydra before v1.0.0-rc.3+oryOS.9 has Reflected XSS via the oauth2/fallbacks/error error_hint parameter.Referenceshttps://drive.google.com/file/d/1-25expUYVfK6vsiCmEabUCuelOP7aUDj/view?usp=drivesdkhttps://www.youtube.com/watch?v=RIyZLeKEC8Ehttps://github.com/ory/hydra/blob/master/CHANGELOG.md#v100-rc3oryos9-2018-12-06https://hackerone.com/reports/456333https://github.com/ory/hydra/commit/9b5bbd48a72096930af08402c5e07fce7dd770f3
