CVE-2016-3734 Moodle Cross-site request forgery (CSRF) vulnerability

What is CVE-2016-3734?

CVE-2016-3734 is a high-severity vulnerability in Moodle Moodle, published on 20 Apr 2017. 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

Cross-site request forgery (CSRF) vulnerability in markposts.php in Moodle 3.0 through 3.0.3, 2.9 through 2.9.5, 2.8 through 2.8.11, 2.7 through 2.7.13 and earlier allows remote attackers to hijack the authentication of users for requests that marks forum posts as read.

Weakness: CWE-352

Which versions are affected by CVE-2016-3734?

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

Products include Moodle Moodle.

How do I fix CVE-2016-3734?

Upgrade moodle/moodle to a fixed version for your release line: 2.7.14, 2.8.12, 2.9.6 or 3.0.4.

Is CVE-2016-3734 being exploited?

There is no known exploitation of CVE-2016-3734 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-r867-v437-4rrm.