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Vulnerability record · CVE-2025-65670 · published 26 November 2025

CVE-2025-65670: Classroomio insecure direct object reference vulnerability

Classroomio · Classroomio

An Insecure Direct Object Reference (IDOR) in classroomio 0.1.13 allows students to access sensitive admin/teacher endpoints by manipulating course IDs in URLs, resulting in unauthorized disclosure of sensitive course, admin, and student data. The leak occurs momentarily before the system reverts to a normal state restricting access.

4.3 CVSS 3.1 Medium EPSS 0.24% · top 86.0% CWE-639 · Insecure direct object reference
4.3CVSS 3.1 base score
0.24%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References, 1 tagged exploit
5 Jul 2026Last modified by NVD

Description

An Insecure Direct Object Reference (IDOR) in classroomio 0.1.13 allows students to access sensitive admin/teacher endpoints by manipulating course IDs in URLs, resulting in unauthorized disclosure of sensitive course, admin, and student data. The leak occurs momentarily before the system reverts to a normal state restricting access.

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/Rivek619/CVE-2025-65670 ExploitThird Party Advisory
https://github.com/classroomio/classroomio Product

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.1CVE-2025-65669Classroomio missing authorization vulnerabilityAn issue was discovered in classroomio 0.1.13. Student accounts are able to delete courses from the Explore page without any authorization or authent…EPSS 0.47%8.1CVE-2025-67298Classroomio authentication bypass by spoofing vulnerabilityAn issue in ClasroomIO before v.0.2.6 allows a remote attacker to escalate privileges via the endpoints /api/verify and /rest/v1/profileEPSS 0.22%7.5CVE-2025-65672Classroomio insecure direct object reference vulnerabilityInsecure Direct Object Reference (IDOR) in classroomio 0.1.13 allows unauthorized share and invite access to course settings.EPSS 0.35%5.4CVE-2025-65675Classroomio cross-site scripting vulnerabilityStored Cross site scripting (XSS) vulnerability in Classroomio LMS 0.1.13 allows authenticated attackers to execute arbitrary code via crafted SVG pr…EPSS 0.24%5.4CVE-2025-65676Classroomio cross-site scripting vulnerabilityStored Cross site scripting (XSS) vulnerability in Classroomio LMS 0.1.13 allows authenticated attackers to execute arbitrary code via crafted SVG co…EPSS 0.24%8.4CVE-2026-55255Langflow IDOR in responses endpoint allows cross-user flow executionLangflow before 1.9.1 has an insecure direct object reference in the /api/v1/responses endpoint. An authenticated attacker can supply another user's …KEVEPSS 0.89%analysed

Source: NIST National Vulnerability Database (record CVE-2025-65670), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.