CVE-2026-88853 – Joomla Extension – regularlabs.com – Privileged stored XSS via event handler option in Mod

Joomla Extension – regularlabs.com – Privileged stored XSS via event handler option in Modals Pro extension for Joomla < 17.0.0 – Modals Pro intentionally supports JavaScript Events such as on-open and on-closed. Affected versions do not distinguish trusted extension configuration from event code supplied in ordinary article content. A lower-privileged author can therefore use a documented executable feature which should be reserved for trusted authors.