CVE-2018-10891

Name: CVE-2018-10891
Creator: NVD / NIST
Published: 2018-07-10T18:29:00.313+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.3/10EPSS 2.12%

Last modified Jun 17, 2026

CVE-2018-10891 is a high-severity vulnerability rated 7.3/10 on the CVSS scale. 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.. EPSS estimates a 2.12% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

7.3/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

EPSS Probability

2.12%

79.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-20

Affected Software

Vendor	Product	Versions
Moodle	Moodle	>= 3.1, < 3.1.13
Moodle	Moodle	>= 3.3, < 3.3.7
Moodle	Moodle	>= 3.4, < 3.4.4
Moodle	Moodle	>= 3.5, < 3.5.1

References

http://www.securityfocus.com/bid/104739Third Party Advisory, VDB Entry
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-10891Issue Tracking, Third Party Advisory
https://moodle.org/mod/forum/discuss.php?d=373371Patch, Vendor Advisory
http://www.securityfocus.com/bid/104739Third Party Advisory, VDB Entry
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-10891Issue Tracking, Third Party Advisory
https://moodle.org/mod/forum/discuss.php?d=373371Patch, Vendor Advisory

Timeline

Published: Jul 10, 2018
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2018-10891?

How severe is CVE-2018-10891?

CVE-2018-10891 has a CVSS score of 7.3/10 (HIGH severity). The EPSS model estimates a 2.12% probability of exploitation in the next 30 days.

How do I fix CVE-2018-10891?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2018-10891?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST