CVE-2023-23922: Moodle Cross-site Scripting vulnerability

Published Jan 19, 2023
·
Updated

Blog search required additional sanitizing to prevent a reflected XSS risk.

Versions affected: 4.1 and 4.0 to 4.0.5 Versions fixed: 4.1.1, 4.0.6

Other sources

Moodle Cross-site Scripting vulnerability

— Packagist

The vulnerability was found Moodle which exists due to insufficient sanitization of user-supplied data in blog search. 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.

— MITRE

Affected Software

8 affected componentsFixes available
Moodle Moodle>=4.0.0<4.0.6
Moodle Moodle=4.1.0
composer/moodle/moodle>=4.1.0-beta, <4.1.1
4.1.1
composer/moodle/moodle>=4.0.0-beta, <4.0.6
4.0.6
composer/moodle/moodle>=4.1.0-beta<4.1.1
4.1.1
composer/moodle/moodle>=4.0.0-beta<4.0.6
4.0.6
redhat/moodle<4.1.1
4.1.1
redhat/moodle<4.0.6
4.0.6

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade redhat/moodle to a version that resolves this vulnerability.

    Fixed in 4.1.1
  2. Upgrade

    Upgrade redhat/moodle to a version that resolves this vulnerability.

    Fixed in 4.0.6
  3. Upgrade

    Upgrade composer/moodle/moodle to a version that resolves this vulnerability.

    Fixed in 4.1.1
  4. Upgrade

    Upgrade composer/moodle/moodle to a version that resolves this vulnerability.

    Fixed in 4.0.6
  5. Upgrade

    Upgrade Moodle 4.1 to a version that resolves this vulnerability.

    Fixed in 4.1.1
  6. Upgrade

    Upgrade Moodle 4.0 to a version that resolves this vulnerability.

    Fixed in 4.0.6

Event History

Jan 19, 2023
Data Sourced
via Red Hat·10:14 PM
DescriptionSeverityAffected Software
Feb 17, 2023
CVE Published
via MITRE·12:00 AM
Data Sourced
via MITRE·12:00 AM
DescriptionWeakness
Data Sourced
via NVD·08:15 PM
RemedyDescriptionSeverityWeaknessAffected Software
Advisory Published
via GitHub·09:30 PM
Data Sourced
via GitHub·09:30 PM
DescriptionSeverityWeaknessAffected Software
Data Sourced
via Packagist·09:30 PM
DescriptionSeverityAffected Software

Frequently Asked Questions

1

What is the vulnerability ID for this Moodle vulnerability?

The vulnerability ID for this Moodle vulnerability is CVE-2023-23922.

2

What is the severity of CVE-2023-23922?

The severity of CVE-2023-23922 is high with a CVSS score of 6.1.

3

How does the vulnerability CVE-2023-23922 occur in Moodle?

The vulnerability CVE-2023-23922 occurs in Moodle due to insufficient sanitization of user-supplied data in blog search.

4

How can a remote attacker exploit CVE-2023-23922?

A remote attacker can exploit CVE-2023-23922 by tricking the victim to follow a specially crafted link and execute arbitrary HTML and script code in the user's browser in the context of the vulnerable website.

5

Are there any patches or updates available for CVE-2023-23922?

Yes, there are patches available for CVE-2023-23922. The recommended version to fix this vulnerability is Moodle 4.1.1.

Company

Resources

Contact

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