CVE-2026-90527A vulnerability was detected in quequnlong shiyi-blog up to 1.2.1. Affected is an unknown function of the file blog-admin/src/views/message/message/index.vue of the component Add Message API. The manipulation of the argument body.content results in cross site scripting. The attack can be executed remotely. The project was informed of the problem early through an issue report but has not responded yet.