CVE-2026-44642 Piwigo: SQL injection in upgrade authentication allows unauthenticated upgrade authorization bypass (PHP 8+)

Piwigo is a full featured open source photo gallery application for the web. Prior to 16.4.0, checkupgradeaccessrights in admin/include/functionsupgrade.php conditionally escapes the submitted username only when the removed getmagicquotesgpc function exists, so PHP 8 and later concatenate an...