CVE-2026-46392 HAX CMS PHP Has a Stored XSS via Case-Sensitivity Mismatch in HTML Upload Validation

HAX CMS helps manage microsite universe with PHP or NodeJs backends. Prior to version 26.0.0 of HAX CMS PHP, the saveFile endpoint validates upload extensions case-insensitively and writes the filename to disk verbatim, but the .htaccess rule that forces Content-Disposition: attachment on HTML...