Improper Input Validation
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.
CWE-20 - Improper Input Validation
The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.