CVE-2013-4522 Moodle vulnerable to Exposure of Sensitive Information to an Unauthorized Actor

What is CVE-2013-4522?

CVE-2013-4522 is a medium-severity vulnerability in Moodle Moodle, published on 26 Nov 2013. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

lib/filelib.php in Moodle through 2.2.11, 2.3.x before 2.3.10, 2.4.x before 2.4.7, and 2.5.x before 2.5.3 does not send "Cache-Control: private" HTTP headers, which allows remote attackers to obtain sensitive information by requesting a file that had been previously retrieved by a caching proxy server.

Weakness: CWE-200

Which versions are affected by CVE-2013-4522?

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

Products include Moodle Moodle.

How do I fix CVE-2013-4522?

Upgrade moodle/moodle to a fixed version for your release line: 2.3.10, 2.4.7 or 2.5.3.

Is CVE-2013-4522 being exploited?

There is no known exploitation of CVE-2013-4522 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-vm9c-39jx-q45w.