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Medium · 5.3 CVE-2021-36403 BIT-moodle-2021-36403EUVD-2023-1048GHSA-j9cw-5cpj-9qj5

Moodle has a Hidden Functionality vulnerability

Published Mar 6, 2023 · Updated Mar 7, 2025 · Assigned by fedora

Description

In Moodle, in some circumstances, email notifications of messages could have the link back to the original message hidden by HTML, which may pose a phishing risk.

Affected products

VendorProductAffectedFixed
— Moodle 3.11, 3.10 to 3.10.4, 3.9 to 3.9.7 and earlier unsupported versions —

Fixed in Linux distributions

Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.

ReleasePackageFixed inAdvisory
Ubuntu Pro 18.04 LTS moodle No fix yet —
Ubuntu Pro 16.04 LTS moodle No fix yet —

Affected packages

EcosystemPackageAffectedFixedRecord
Packagist moodle/moodle >= 3.11.0-beta, < 3.11.1 3.11.1 GHSA-j9cw-5cpj-9qj5
Packagist moodle/moodle >= 3.10.0-beta, < 3.10.5 3.10.5 GHSA-j9cw-5cpj-9qj5
Packagist moodle/moodle < 3.9.8 3.9.8 GHSA-j9cw-5cpj-9qj5

Advisories 1

References