Fix attribute name used on Validator instance within certain rule classes

[crynobone]

No description provided.

[macropay-solutions]

@crynobone @taylorotwell can this security issue be fixed ALSO in Laravel 8, 9 and 10?

Update
We added a retroactive fix into our free lib that works for illuminate/validation 8.0.0 -> 11.44.0

[macropay-solutions]

Also @crynobone

the return type is wrong here:

    /**
     * Replace each field parameter dot placeholder with dot.
     *
     * @param  string  $value
     * @return string // should be array
     */
    protected function replaceDotPlaceholderInParameters(array $parameters)
    {
        return array_map(function ($field) {
            return str_replace('__dot__'.static::$placeholderHash, '.', $field);
        }, $parameters);
    }