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Moodle contains CSRF vulnerability

High severity GitHub Reviewed Published May 24, 2022 to the GitHub Advisory Database • Updated Jul 11, 2023

Package

composer moodle/moodle (Composer)

Affected versions

>= 3.11, <= 3.11.3
>= 3.10, <= 3.10.7
>= 3.9, <= 3.9.10

Patched versions

3.11.4
3.10.8
3.9.11

Description

A flaw was found in Moodle in versions 3.11 to 3.11.3, 3.10 to 3.10.7, 3.9 to 3.9.10 and earlier unsupported versions. The "delete related badge" functionality did not include the necessary token check to prevent a CSRF risk.

References

Published by the National Vulnerability Database Nov 22, 2021
Published to the GitHub Advisory Database May 24, 2022
Reviewed Jul 11, 2023
Last updated Jul 11, 2023

Severity

High

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
None
User interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

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:N/UI:R/S:U/C:H/I:H/A:H

EPSS score

0.071%
(32nd percentile)

Weaknesses

CVE ID

CVE-2021-43559

GHSA ID

GHSA-3jrj-x6cj-97cp

Source code

No known source code
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