| Name | Lines of code | Maintainability | Test coverage |
| admin/mimetypes.php | 161 | C 1 day | |
| letter.php | 177 | B 5 hrs | |
| mirror.php | 196 | A 3 hrs | |
| class/DbupdaterTable.php | 203 | C 1 day | |
| class/XoopsTree.php | 209 | F 1 wk | |
| class/Common/XoopsTree.php | 209 | F 1 wk | |
| index.php | 223 | B 6 hrs | |
| admin/categories.php | 237 | B 4 hrs | |
| singlefile.php | 270 | C 1 day | |
| language/english/main.php | 298 | A 3 hrs | |
| viewcat.php | 326 | D 1 day | |
| admin/reportsmodifications.php | 356 | B 4 hrs | |
| language/english/modinfo.php | 370 | B 4 hrs | |
| submit.php | 418 | F 4 days | |
| assets/js/magnific/jquery.magnific-popup.min.js | 427 | D 1 day | |
| admin/blocksadmin.php | 499 | F 5 days | |
| include/onupdate.php | 541 | F 4 days | |
| admin/import.php | 613 | F 1 wk | |
| language/english/admin.php | 636 | C 1 day | |
| class/Download.php | 758 | F 1 wk | |
| admin/downloads.php | 811 | F 5 days | |
| xoops_version.php | 965 | D 2 days | |
| class/Utility.php | 1,363 | F 2 wks |