CVE-2025-53021

MEDIUM

4.2

Descripcion

A session fixation vulnerability in Moodle 3.x through 3.11.18 allows unauthenticated attackers to hijack user sessions via the sesskey parameter. The sesskey can be obtained without authentication and reused within the OAuth2 login flow, resulting in the victim's session being linked to the attacker's. Successful exploitation results in full account takeover. According to the Moodle Releases page, "Bug fixes for security issues in 3.11.x ended 11 December 2023." NOTE: This vulnerability only affects products that are no longer supported by the maintainer.

Detalles CVE

Puntuacion CVSS v3.14.2

SeveridadMEDIUM

Vector CVSSCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N

Vector de ataqueNETWORK

ComplejidadHIGH

Privilegios requeridosNONE

Interaccion usuarioREQUIRED

Publicado6/24/2025

Ultima modificacion7/9/2025

Fuentenvd

Avistamientos honeypot0

Productos afectados

moodle:moodle

Debilidades (CWE)

CWE-384

Referencias

https://github.com/moodle/moodle/releases/tag/v3.11.18(cve@mitre.org)

https://moodledev.io/general/releases#moodle-311(cve@mitre.org)

https://rentry.co/moodle-oauth2-cve(cve@mitre.org)

Correlaciones IOC

Sin correlaciones registradas

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