GHSA-2M69-JMVH-6CHR CI4MS: Stored XSS in Blog Content via Broken `html_purify` Validation Rule

Summary The custom htmlpurify validation rule used to sanitize blog post bodies relies on by-reference mutation ?string &$str, but CodeIgniter 4's validator passes a local copy of the value, so the sanitized text is silently discarded. The Blog controller writes $lanData'content' directly into...