Improper Neutralization of Special Elements in Output Used by a Downstream Component in Moodle - CVE-2018-10891
Published: July 10, 2018 / Updated: July 17, 2020
Vulnerability identifier: #VU31274
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2018-10891
CWE-ID: CWE-74
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: moodle.org
Affected software:
Moodle
Moodle
Detailed vulnerability description
The vulnerability allows a remote non-authenticated attacker to read and manipulate data.
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 mitigate CVE-2018-10891
Install update from vendor's website.