Wiping an iPhone without the iCloud password can be a tricky and challenging task, especially when you need to reset the device and are locked out of your iCloud account. However, there are a few methods you can try to wipe your iPhone without the iCloud password:

1. Use iTunes: Connect your iPhone to a computer with iTunes installed. Put your iPhone into Recovery Mode and restore it through iTunes. This method will erase all data on the device, including the iCloud account.
2. Find My iPhone: If Find My iPhone is enabled on your device, you can remotely erase the iPhone by using the Find My iPhone feature on iCloud.com. This method will also remove the iCloud account.
3. Contact Apple Support: If all else fails, reach out to Apple Support for assistance. They may require proof of ownership before helping you reset the device without the iCloud password.

It's crucial to note that without the iCloud password, wiping the iPhone may lead to activation lock issues. It's always recommended to keep track of your passwords and account information to avoid such situations in the future.