CMS Clipper 1.3.3 has XSS in the Security tab search, User Groups, Resource Groups, and User/Resource Group Links fields.
- https://github.com/ClipperCMS/ClipperCMS/issues/487
- https://github.com/ClipperCMS/ClipperCMS/issues/488
- https://github.com/ClipperCMS/ClipperCMS/issues/496
No PoCs found on GitHub currently.