CVE-2014-7835 Moodle allows attackers to upload files containing JavaScript
Authenticated users can upload malicious JavaScript files to profile picture areas, enabling cross-site scripting attacks against other users.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2014-7835?
CVE-2014-7835 is a low-severity cross-site scripting vulnerability in Moodle Moodle, published on 24 Nov 2014. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official description
webservice/upload.php in Moodle 2.6.x before 2.6.6 and 2.7.x before 2.7.3 does not ensure that a file upload is for a private or draft area, which allows remote authenticated users to upload files containing JavaScript, and consequently conduct cross-site scripting (XSS) attacks, by specifying the profile-picture area.
Weakness: CWE-79
Which versions are affected by CVE-2014-7835?
4 open source packages ship an affected version, including moodle/moodle. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
moodle/moodle Packagist | From 2.6.0 | 2.6.6 |
moodle/moodle Packagist | From 2.6.0 | 2.6.6 |
moodle/moodle Packagist | From 2.7.0 | 2.7.3 |
moodle/moodle Packagist | From 2.7.0 | 2.7.3 |
Products include Moodle Moodle.
How do I fix CVE-2014-7835?
Upgrade moodle/moodle to a fixed version for your release line: 2.6.6 or 2.7.3.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2014-7835 being exploited?
There is no known exploitation of CVE-2014-7835 in the wild and no public exploit code.
Other vulnerabilities in Moodle Moodle
- CVE-2006-4935 File upload in n/a
- CVE-2006-4936 Moodle does not properly validate module instance id
- CVE-2004-2233 Unknown "front page vulnerability with Moodle servers" for Moodle before 1.3.2 has unknown impact and attack vectors.
- CVE-2004-2235 Cross-site scripting in n/a
- CVE-2004-2236 Other in n/a
Sources
Also known as GHSA-vrf6-q7qj-69v5.