CVE-2013-2083 Moodle is vulnerable to Improper Input Validation in MoodleQuickForm class

What is CVE-2013-2083?

CVE-2013-2083 is a medium-severity vulnerability in Moodle Moodle, published on 25 May 2013. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

The MoodleQuickForm class in lib/formslib.php in Moodle through 2.1.10, 2.2.x before 2.2.10, 2.3.x before 2.3.7, and 2.4.x before 2.4.4 does not properly handle a certain array-element syntax, which allows remote attackers to bypass intended form-data filtering via a crafted request.

Weakness: CWE-20

Which versions are affected by CVE-2013-2083?

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

Products include Moodle Moodle.

How do I fix CVE-2013-2083?

Upgrade moodle/moodle to a fixed version for your release line: 2.2.10, 2.3.7 or 2.4.4.

Is CVE-2013-2083 being exploited?

There is no known exploitation of CVE-2013-2083 in the wild and no public exploit code.

Other vulnerabilities in Moodle Moodle

• CVE-2006-4935 File upload in n/a Critical 10.0
• CVE-2006-4936 Moodle does not properly validate module instance id Critical 10.0
• CVE-2004-2233 Unknown "front page vulnerability with Moodle servers" for Moodle before 1.3.2 has unknown impact and attack vectors. Critical 10.0
• CVE-2004-2235 Cross-site scripting in n/a Critical 10.0
• CVE-2004-2236 Other in n/a Critical 10.0

All Moodle Moodle vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-m63h-q4x3-6hwj, UBUNTU-CVE-2013-2083.