CVE-2026-45138 CI4MS: Stored XSS in Blog Content via Broken `html_purify` Validation Rule

CI4MS is a CodeIgniter 4-based content management system skeleton. Prior to version 0.31.9.0, 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 tex...

CI4MS: Stored XSS in Pages Module Content via Broken html_purify Validation Rule

Summary The Pages backend module registers the htmlpurify validation rule on language-keyed page content but persists the raw, un-purified POST value into the database. The public renderer for pages Home::index → app/Views/templates/default/pages.php emits $pageInfo-content without esc, yielding...

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...