CVE-2021-36392 Moodle SQL Injection vulnerability

Critical 9.8 Published Updated

An SQL injection vulnerability in Moodle's course enrollment library allows attackers to read or modify database contents.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
Available

What is CVE-2021-36392?

CVE-2021-36392 is a critical SQL injection vulnerability in Moodle Moodle, published on 6 Mar 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

In Moodle, an SQL injection risk was identified in the library fetching a user's enrolled courses.

Weakness: CWE-89

Which versions are affected by CVE-2021-36392?

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

PackageAffectedFixed in
moodle/moodle PackagistAll versions3.9.8
moodle/moodle PackagistAll versions3.9.8
moodle/moodle PackagistFrom 3.10.0-beta3.10.5
moodle/moodle PackagistFrom 3.10.0-beta3.10.5
moodle/moodle PackagistFrom 3.11.0-beta3.11.1
moodle/moodle PackagistFrom 3.11.0-beta3.11.1
1 more packages
moodle BitnamiAll versions3.9.8, 3.10.5, 3.11.1

Products include Moodle Moodle.

How do I fix CVE-2021-36392?

Upgrade moodle/moodle to a fixed version for your release line: 3.9.8, 3.10.5 or 3.11.1.

Use parameterised queries everywhere and never build SQL by joining strings. Upgrade affected software first; a web application firewall only buys time. More about SQL injection.

Is CVE-2021-36392 being exploited?

There is no known exploitation of CVE-2021-36392 in the wild and no public exploit code.

All Moodle Moodle vulnerabilities

Sources

Also known as BIT-moodle-2021-36392, GHSA-qc86-vgf2-6fq6, UBUNTU-CVE-2021-36392.

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