title: [20201107] - Core - Write ACL violation in multiple core views
description: An issue was discovered in Joomla! 1.7.0 through 3.9.22. Lack of input validation while handling ACL rulesets can cause write ACL violations.
problem types: ACL Violation
affected:
{
product: Joomla! CMS
vendor: Joomla! Project
versions:
status: affected, version: 1.7.0 - 3.9.22
}