CVE-2026-111368EPSS p13.0%

CVE-2026-111368CVE-2026-111368

Description

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.

Scoring

CVSS 6.4 ()
VectorCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:H/A:L
EPSS0.23% probability of exploitation · percentile 13.0% · 2026-10-17T12:00:28Z
Last modified2026-10-16
Sourced from NVD + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.