Insecure Direct Object Reference in classroomio Affects Student Data Access
CVE-2025-65670

4.3MEDIUM

Key Information:

Vendor

classroomio

Status
classroomio
Vendor
CVE Published:
26 November 2025

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2025-65670?

An Insecure Direct Object Reference (IDOR) vulnerability in classroomio version 0.1.13 allows unauthorized access to sensitive endpoints that should only be available to administrators or teachers. By manipulating course IDs within URLs, students can inadvertently access confidential information, including sensitive course content and personal data of administrators and other students. This vulnerability can lead to significant data exposure risk before the system restricts access again.

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Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2025-65670
Created by Rivek619

References

http://classroomio.com
https://github.com/classroomio/classroomio
https://github.com/Rivek619/CVE-2025-65670

CVSS V3.1

Score:
4.3
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
None
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability Reserved

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