ClassroomIO through 1.0.0 Incorrect Authorization via Lesson Update and Delete Routes
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.
CVE-2026-111369
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-2026-111369
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-2026-111369
Source reference:
/cveMetadata/cveId
Publisher severity
high
Source reference: /containers/cna/metrics
- Event
- #32813 · Revision 1
- Added to Heist Feed
- Publisher date