CVE-2025-67856
Unknown Unknown - Not Provided
Authorization Logic Flaw in Moodle Badge System Enables Privilege Escalation

Publication date: 2026-02-03

Last updated on: 2026-02-26

Assigner: Fedora Project

Description
A flaw was found in Moodle. An authorization logic flaw, specifically due to incomplete role checks during the badge awarding process, allowed badges to be granted without proper verification. This could enable unauthorized users to obtain badges they are not entitled to, potentially leading to privilege escalation or unauthorized access to certain features.
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Meta Information
Published
2026-02-03
Last Modified
2026-02-26
Generated
2026-06-16
AI Q&A
2026-02-04
EPSS Evaluated
2026-06-15
NVD
CVE-2025-67856
EUVD
EUVD-2025-206750
Affected Vendors & Products
Showing 5 associated CPEs
Vendor Product Version / Range
moodle moodle From 4.5.0 (inc) to 4.5.8 (exc)
moodle moodle From 5.0.0 (inc) to 5.0.4 (exc)
moodle moodle to 4.1.22 (exc)
moodle moodle From 4.4.0 (inc) to 4.4.12 (exc)
moodle moodle 5.1.0
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-863 The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check.
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Executive Summary

This vulnerability is an authorization logic flaw in Moodle where incomplete role checks during the badge awarding process allow badges to be granted without proper verification. This means that users can receive badges they are not entitled to, bypassing normal role restrictions. [1]

Impact Analysis

The vulnerability can lead to unauthorized privilege escalation by allowing users to obtain badges without proper authorization. This could enable them to access features or permissions that should be restricted, potentially compromising the security of the Moodle environment. [1]

Mitigation Strategies

Since there is no specified fixed version available at the time of the report, immediate mitigation steps include reviewing and restricting badge awarding permissions to trusted users only, monitoring badge awarding activities for suspicious behavior, and applying any available security patches or updates from Moodle as soon as they are released. [1]

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