Rainbow table attacks are a type of attack that attempts to discover the password from the hash.
A rainbow table is a huge database of possible passwords with the precomputed hashes for each. It helps to look at the process of how some password cracker applications discover passwords without a rainbow table. Assume that an attacker has the hash of a password.

Community cloud storage is a variation of the private cloud storage model, which offers cloud solutions for specific businesses or communities. In this model, cloud storage providers offer their cloud architecture, software and other development tools to meet the requirements of the community. A community cloud in computing is a collaborative effort in which infrastructure is shared between several organizations from a specific community with common concerns (security, compliance, jurisdiction, etc.), whether managed internally or by a third-party and hosted internally or externally.

Cross-site scripting attacks may occur anywhere that possibly malicious users are allowed to post unregulated material to a trusted website for the consumption of other valid users. The most common example can be found in bulletin-board websites which provide web based mailing list-style functionality. https://owasp.org/www-community/attacks/xss/
https://www.acunetix.com/websitesecurity/cross-site-scripting/