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Moodle may allow students to bypass sequential navigation during a quiz attempt

Moderate severity GitHub Reviewed Published Mar 24, 2023 to the GitHub Advisory Database • Updated Mar 30, 2023

Package

composer moodle/moodle (Composer)

Affected versions

>= 4.0.0, < 4.0.3
>= 3.11.0, < 3.11.9
< 3.9.16

Patched versions

4.0.3
3.11.9
3.9.16

Description

In Moodle, insufficient limitations in some quiz web services made it possible for students to bypass sequential navigation during a quiz attempt.

References

Published by the National Vulnerability Database Mar 24, 2023
Published to the GitHub Advisory Database Mar 24, 2023
Reviewed Mar 24, 2023
Last updated Mar 30, 2023

Severity

Moderate

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
Low
Availability
None

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

EPSS score

0.054%
(24th percentile)

Weaknesses

CVE ID

CVE-2022-40208

GHSA ID

GHSA-948f-j464-rfj2

Source code

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