MEDIUM 6.1 NVD
CVE-2026-111368
ClassroomIO through 1.0.0 contains an insecure direct object reference vulnerability in the Hono API course submission routes that allows course tutors or admin
ClassroomIO through 1.0.0 contains an insecure direct object reference vulnerability in the Hono API course submission routes that allows course tutors or admins to modify submissions in other courses. Attackers can supply their own course id with another course's submission UUID to PUT or DELETE handlers to overwrite answers, grades, feedback, and grading status or delete submissions.
References
- https://github.com/classroomio/classroomio
- https://github.com/classroomio/classroomio/blob/v1.0.0/apps/api/src/routes/course/submissi
- https://github.com/classroomio/classroomio/blob/v1.0.0/packages/db/src/queries/submission/
- https://github.com/classroomio/classroomio/commit/1844ad9671a0d9c2566d3431d82f34d39016242c
- https://hackmd.io/@hieuPenguinnn/classroomio-course-resource-id-scoping-idor
This medium severity vulnerability with a CVSS score of 6.1 was published on 2026-10-15 via NVD.
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