ClassroomIO through 1.0.0 IDOR via Course Submission Update, Grade and Delete Routes
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.
CVE-2026-111368
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-111368
ClassroomIO
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"repo": "https://github.com/classroomio/classroomio",
"vendor": "classroomio",
"product": "ClassroomIO",
"versions": [
{
"status": "affected",
"version": "0",
"versionType": "semver",
"lessThanOrEqual": "1.0.0"
}
],
"packageURL": "pkg:github/classroomio/classroomio",
"defaultStatus": "unaffected"
}
]- Related CVEs
- CVE-2026-111368
Source reference:
/cveMetadata/cveId
Publisher severity
medium
Source reference: /containers/cna/metrics
- Event
- #32442 · Revision 1
- Added to Heist Feed
- Publisher date