CVE-2023-5545 Moodle: auto-populated h5p author name causes a potential information leak

Low 3.3 Published Updated

Moodle automatically exposes user usernames as H5P author metadata, potentially leaking sensitive identity information to unauthorized viewers.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Local or same network only
Victim action needed
A user has to click or open something
Fix
Available

What is CVE-2023-5545?

CVE-2023-5545 is a low-severity vulnerability in Fedoraproject Extra Packages for Enterprise Linux, published on 9 Nov 2023. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

Official description

H5P metadata automatically populated the author with the user's username, which could be sensitive information.

Weakness: CWE-668, CWE-200

Which versions are affected by CVE-2023-5545?

3 open source packages ship an affected version, including moodle/moodle and moodle. It affects 3 products.

PackageAffectedFixed in
moodle/moodle PackagistAll versions4.3.0-rc2
moodle/moodle PackagistAll versions4.3.0-rc2
moodle BitnamiAll versions3.9.24, 3.11.17, 4.0.11, 4.1.6, 4.2.3

Products include Fedoraproject Extra Packages for Enterprise Linux, Fedoraproject Fedora, Moodle Moodle.

How do I fix CVE-2023-5545?

Upgrade moodle/moodle to 4.3.0-rc2 or later.

Is CVE-2023-5545 being exploited?

There is no known exploitation of CVE-2023-5545 in the wild and no public exploit code.

All Fedoraproject Extra Packages for Enterprise Linux vulnerabilities

Sources

Also known as BIT-moodle-2023-5545, GHSA-26fg-v32r-h663, UBUNTU-CVE-2023-5545.

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