CVE-2026-3110
Deferred Deferred - Pending Action
IDOR Vulnerability in Campus Educativa Exposes User Data

Publication date: 2026-03-16

Last updated on: 2026-05-19

Assigner: Spanish National Cybersecurity Institute, S.A. (INCIBE)

Description
Insecure Direct Object Reference (IDOR) vulnerability in Campus Educativa specifically at the endpoint '/administracion/admin_usuarios.cgi?filtro_estado=T&wAccion=listado_xlsx&wBuscar=&wFiltrar=&wOrden=alta_usuario&wid_cursoActual=[ID]' where the data of users enrolled in the course is exported. Successful exploitation of this vulnerability could allow an unauthenticated attacker to access user data (e.g., usernames, first and last names, email addresses, and phone numbers) and retrieve the data of all users enrolled in courses by performing a brute-force attack on the course ID via a manipulated URL.
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Meta Information
Published
2026-03-16
Last Modified
2026-05-19
Generated
2026-06-16
AI Q&A
2026-03-16
EPSS Evaluated
2026-06-15
NVD
CVE-2026-3110
EUVD
EUVD-2026-12378
Affected Vendors & Products
Currently, no data is known.
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Exploitability
CWE
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KEV
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CWE ID Description
CWE-284 The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.
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Executive Summary

This vulnerability is an Insecure Direct Object Reference (IDOR) found in Campus Educativa at a specific endpoint used to export user data enrolled in courses.

An unauthenticated attacker can exploit this by manipulating the URL parameter that identifies the course ID and performing a brute-force attack to access data of all users enrolled in different courses.

The exposed data includes usernames, first and last names, email addresses, and phone numbers.

Impact Analysis

Exploitation of this vulnerability can lead to unauthorized access to sensitive user information without any authentication.

This could result in privacy breaches, identity theft, phishing attacks, and other malicious activities targeting the exposed users.

Since the attacker can retrieve data of all users enrolled in courses, the scale of impact can be significant.

Compliance Impact

I don't know

Detection Guidance

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Mitigation Strategies

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