High severity7.1NVD Advisory· Published Oct 15, 2026
CVE-2026-111369
CVE-2026-111369
Description
ClassroomIO through 1.0.0 contains an incorrect authorization vulnerability in the PUT and DELETE /:lessonId lesson routes that allows any course member, including students, to modify lessons. Authenticated students can supply arbitrary lesson ids to change titles and stored HTML content or delete lessons in their course and in other courses and organizations.
Affected products
1- Range: <=1.0.0
Patches
Vulnerability mechanics
References
4- github.com/classroomio/classroomio/blob/v1.0.0/apps/api/src/middlewares/course-member.tsnvd
- github.com/classroomio/classroomio/blob/v1.0.0/apps/api/src/routes/course/lesson.tsnvd
- hackmd.io/@hieuPenguinnn/classroomio-course-resource-id-scoping-idornvd
- www.vulncheck.com/advisories/classroomio-through-1.0.0-incorrect-authorization-via-lesson-update-and-delete-routesnvd
News mentions
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