CVE-2018-10891
Moodle XSS Vulnerability
7.3
HIGH
CVSS 3.1
EPSS 0.36%
Description
A flaw was found in moodle before versions 3.5.1, 3.4.4, 3.3.7, 3.1.13. When a quiz question bank is imported, it was possible for the question preview that is displayed to execute JavaScript that is written into the question bank.
How to fix CVE-2018-10891
To remediate CVE-2018-10891, upgrade the affected package to a fixed version below.
- Packagist/moodle/moodle—upgrade to 3.5.1 or later
Is CVE-2018-10891 being exploited?
Low — EPSS is 0.4%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- >= 3.5.0, < 3.5.1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L |