GHSA-4cpv-669c-r79x Prevent injection of invalid entity ids for "autocomplete" fields

• Packagist symfony/ux-autocomplete: < 2.11.2 → fixed in 2.11.2

Impact Under certain circumstances, an attacker could successfully submit an entity id for an `EntityType` that is *not* part of the valid choices. Affected applications are any that use: • A custom `query_builder` option to limit the valid results; AND • An `EntityType` with `'autocomplete' => true` or a custom AsEntityAutocompleteField. Under this circumstance, if an id is submitted, it is accepted even if the matching record would not be returned by the custom query built with `query_builder`. Patches The problem has been fixed in `symfony/ux-autocomplete` version 2.11.2. Workarounds Upgrade to version 2.11.2 or greater of `symfony/ux-autocomplete` or perform extra validation after submit to verify the selected option is valid.