CVE-2026-90569A flaw has been found in linlinjava litemall 1.5.0/1.6.0/1.7.0/1.8.0. This vulnerability affects the function AdminTopicController.validate of the file litemall-vue/src/views/items/topic/index.vue of the component Admin Topic Handler. This manipulation causes cross site scripting. The attack may be initiated remotely. The project was informed of the problem early through an issue report but has not responded yet.