CVE-2024-34006 moodle: unsanitized HTML in site log for config_log_created

Medium 4.3 Published Updated

Attackers can inject malicious HTML into site logs, leading to cross-site scripting attacks against administrators viewing the logs.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
Available

What is CVE-2024-34006?

CVE-2024-34006 is a medium-severity cross-site scripting vulnerability in Moodle Moodle, published on 31 May 2024. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

The site log report required additional encoding of event descriptions to ensure any HTML in the content is displayed in plaintext instead of being rendered.

Weakness: CWE-838

Which versions are affected by CVE-2024-34006?

7 open source packages ship an affected version, including moodle/moodle and moodle. It affects 1 product.

PackageAffectedFixed in
moodle/moodle PackagistAll versions4.1.10
moodle/moodle PackagistAll versions4.1.10
moodle/moodle PackagistFrom 4.2.04.2.7
moodle/moodle PackagistFrom 4.2.04.2.7
moodle/moodle PackagistFrom 4.3.04.3.4
moodle/moodle PackagistFrom 4.3.04.3.4
1 more packages
moodle BitnamiAll versions4.1.10, 4.2.7, 4.3.4

Products include Moodle Moodle.

How do I fix CVE-2024-34006?

Upgrade moodle/moodle to a fixed version for your release line: 4.1.10, 4.2.7 or 4.3.4.

Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.

Is CVE-2024-34006 being exploited?

There is no known exploitation of CVE-2024-34006 in the wild and no public exploit code.

All Moodle Moodle vulnerabilities

Sources

Also known as BIT-moodle-2024-34006, GHSA-vvh5-7v3m-j3mj, UBUNTU-CVE-2024-34006.

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