CVE-2024-1439: Inadequate access control vulnerability in Moodle

Severity: low (CVSS 3.3 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2024-02-12 · updated 2026-06-17
Weakness: CWE-284

Description

Inadequate access control in Moodle LMS. This vulnerability could allow a local user with a student role to create arbitrary events intended for users with higher roles. It could also allow the attacker to add events to the calendar of all users without their prior consent.

Affected products

Moodle: through 4.2.11

References

https://www.incibe.es/en/incibe-cert/notices/aviso/inadequate-access-control-vulnerability-moodle
https://www.incibe.es/en/incibe-cert/notices/aviso/inadequate-access-control-vulnerability-moodle

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