CVE-2023-5544 Moodle: stored xss and potential idor risk in wiki comments
Attackers can inject malicious scripts into wiki comments, leading to stored XSS and potential unauthorized data access via IDOR.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2023-5544?
CVE-2023-5544 is a medium-severity cross-site scripting vulnerability in Fedoraproject Fedora, published on 9 Nov 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Wiki comments required additional sanitizing and access restrictions to prevent a stored XSS risk and potential IDOR risk.
Which versions are affected by CVE-2023-5544?
3 open source packages ship an affected version, including moodle/moodle and moodle. It affects 3 products.
| Package | Affected | Fixed in |
|---|---|---|
moodle/moodle Packagist | All versions | 4.3.0-rc2 |
moodle/moodle Packagist | All versions | 4.3.0-rc2 |
moodle Bitnami | From 3.9.0 | 3.9.24, 3.11.17, 4.0.11, 4.1.6, 4.2.3 |
Products include Fedoraproject Fedora, Moodle Moodle, Redhat Enterprise Linux.
How do I fix CVE-2023-5544?
Upgrade moodle/moodle to 4.3.0-rc2 or later.
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-2023-5544 being exploited?
There is no known exploitation of CVE-2023-5544 in the wild and no public exploit code.
Other vulnerabilities in Fedoraproject Fedora
Sources
Also known as BIT-moodle-2023-5544, GHSA-j5xf-gv89-g422, UBUNTU-CVE-2023-5544.