CVE-2019-14881 Moodle XSS Vulnerability

Medium 6.1 Published Updated

Attackers can inject malicious scripts via user email fields in Moodle, potentially leading to session hijacking or code execution.

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-2019-14881?

CVE-2019-14881 is a medium-severity cross-site scripting vulnerability in Moodle Moodle, published on 18 Mar 2020. 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

A vulnerability was found in moodle 3.7 before 3.7.3, where there is blind XSS reflected in some locations where user email is displayed.

Weakness: CWE-79

Which versions are affected by CVE-2019-14881?

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

PackageAffectedFixed in
moodle/moodle PackagistFrom 3.7.03.7.3
moodle/moodle PackagistFrom 3.7.03.7.3

Products include Moodle Moodle.

How do I fix CVE-2019-14881?

Upgrade moodle/moodle to 3.7.3 or later.

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-2019-14881 being exploited?

There is no known exploitation of CVE-2019-14881 in the wild and no public exploit code.

All Moodle Moodle vulnerabilities

Sources

Also known as GHSA-9jf6-wq34-fg9w, UBUNTU-CVE-2019-14881.

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