CVE-2021-32244 Moodle Cross Site Scripting (XSS)
Remote attackers can execute arbitrary web script or HTML via the Description field in Moodle, potentially compromising user sessions.
- 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-2021-32244?
CVE-2021-32244 is a medium-severity cross-site scripting vulnerability in Moodle Moodle, published on 16 Jun 2021. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official description
Cross Site Scripting (XSS) in Moodle 3.10.3 allows remote attackers to execute arbitrary web script or HTML via the "Description" field.
Weakness: CWE-79
Which versions are affected by CVE-2021-32244?
3 open source packages ship an affected version, including moodle/moodle and moodle. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
moodle/moodle Packagist | All versions | None |
moodle/moodle Packagist | All versions | None |
moodle Bitnami | From 3.10.3 | 3.10.4 |
Products include Moodle Moodle.
How do I fix CVE-2021-32244?
Upgrade to a fixed version.
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-2021-32244 being exploited?
There is no known exploitation of CVE-2021-32244 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 BIT-moodle-2021-32244, GHSA-g5m5-j48g-fr24, UBUNTU-CVE-2021-32244.