CVE-2023-23921
Medium
Description
The vulnerability was found Moodle which exists due to insufficient sanitization of user-supplied data in some returnurl parameters. A remote attacker can trick the victim to follow a specially crafted link and execute arbitrary HTML and script code in user's browser in context of vulnerable website. This flaw allows a remote attacker to perform cross-site scripting (XSS) attacks.
SeverityMedium
CVSS6.1
Exploit probability—
Product
Moodle
PublishedFeb 17, 2023
First seenFeb 17, 2023
Weakness typeCWE-79Cross-site scripting (XSS)
How to fix
Update
- moodle moodle3.9.19, 3.11.12, 4.0.6 or later
- moodle/moodle3.9.19, 3.11.12, 4.0.6, 4.1.1 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| moodle moodle | 3.9.0 ≤ v < 3.9.19, 3.11.0 ≤ v < 3.11.12, 4.0.0 ≤ v < 4.0.6, 4.1.0 | 3.9.19, 3.11.12, 4.0.6 |
| moodle/moodlePackagist | v < 3.9.19, 3.10.0 ≤ v < 3.11.12, 4.0.0-beta ≤ v < 4.0.6, 4.1.0-beta ≤ v < 4.1.1 | 3.9.19, 3.11.12, 4.0.6, 4.1.1 |
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