CVE-2015-3181 Moodle allows attackers to bypass file-management restrictions

What is CVE-2015-3181?

CVE-2015-3181 is a medium-severity missing authorization vulnerability in Moodle Moodle, published on 1 Jun 2015. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

files/externallib.php in Moodle through 2.5.9, 2.6.x before 2.6.11, 2.7.x before 2.7.8, and 2.8.x before 2.8.6 does not consider the moodle/user:manageownfiles capability before approving a private-file upload, which allows remote authenticated users to bypass intended file-management restrictions by using web services to perform uploads after this capability has been revoked.

Weakness: CWE-264

Which versions are affected by CVE-2015-3181?

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

Products include Moodle Moodle.

How do I fix CVE-2015-3181?

Upgrade moodle/moodle to a fixed version for your release line: 2.6.11, 2.7.8 or 2.8.6.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2015-3181 being exploited?

There is no known exploitation of CVE-2015-3181 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-622h-cjgg-5mx6.