CVE-2023-35131: Moodle: xss risk on groups page

Q: What is CVE-2023-35131?

CVE-2023-35131 is a vulnerability that allows attackers to execute cross-site scripting attacks by injecting malicious content on the groups page in Moodle versions 4.2, 4.1 to 4.1.3, 4.0 to 4.0.8, and 3.11 to 3.11.14.

Q: How does CVE-2023-35131 affect Moodle?

CVE-2023-35131 affects Moodle versions 4.2, 4.1 to 4.1.3, 4.0 to 4.0.8, and 3.11 to 3.11.14 by allowing attackers to inject malicious content on the groups page, which can lead to cross-site scripting attacks.

Q: What is the severity of CVE-2023-35131?

CVE-2023-35131 has a severity level of medium (6.1) according to the Common Vulnerability Scoring System (CVSS).

Q: How can I fix CVE-2023-35131?

To fix CVE-2023-35131, it is recommended to update Moodle to version 4.2.1, 4.1.4, 4.0.9, or 3.11.15 or apply the relevant patches provided by Moodle.

Q: Where can I find more information about CVE-2023-35131?

You can find more information about CVE-2023-35131 in the following references: [1] [2] [3]

Published Jun 12, 2023

Updated

Content on the groups page required additional sanitizing to prevent an XSS risk. This flaw affects Moodle versions 4.2, 4.1 to 4.1.3, 4.0 to 4.0.8 and 3.11 to 3.11.14.

Affected Software

12 affected componentsFixes available

redhat/moodle<4.2.1

4.2.1

redhat/moodle<4.1.4

4.1.4

redhat/moodle<4.0.9

4.0.9

redhat/moodle<3.11.15

3.11.15

composer/moodle/moodle<3.11.15

3.11.15

composer/moodle/moodle>=4.0.0<4.0.9

4.0.9

composer/moodle/moodle>=4.1.0<4.1.4

4.1.4

composer/moodle/moodle=4.2.0

4.2.1

Moodle moodle>=3.11.0<3.11.15

Moodle moodle>=4.0.0<4.0.9

Moodle moodle>=4.1.0<4.1.4

Moodle moodle=4.2.0

Remediation

Recommended actions to resolve this vulnerability, in priority order.

Upgrade
Upgrade redhat/moodle to a version that resolves this vulnerability.
Fixed in 4.2.1
Upgrade
Upgrade redhat/moodle to a version that resolves this vulnerability.
Fixed in 4.1.4
Upgrade
Upgrade redhat/moodle to a version that resolves this vulnerability.
Fixed in 4.0.9
Upgrade
Upgrade redhat/moodle to a version that resolves this vulnerability.
Fixed in 3.11.15
Upgrade
Upgrade composer/moodle/moodle to a version that resolves this vulnerability.
Fixed in 3.11.15
Upgrade
Upgrade composer/moodle/moodle to a version that resolves this vulnerability.
Fixed in 4.0.9
Upgrade
Upgrade composer/moodle/moodle to a version that resolves this vulnerability.
Fixed in 4.1.4
Upgrade
Upgrade composer/moodle/moodle to a version that resolves this vulnerability.
Fixed in 4.2.1

Event History

Jun 22, 2023

CVE Published

via MITRE·12:00 AM

Data Sourced

via MITRE·12:00 AM

DescriptionSeverityWeakness

Data Sourced

via NVD·09:15 PM

RemedyDescriptionSeverityWeaknessAffected Software

Advisory Published

09:30 PM

Frequently Asked Questions

What is CVE-2023-35131?

CVE-2023-35131 is a vulnerability that allows attackers to execute cross-site scripting attacks by injecting malicious content on the groups page in Moodle versions 4.2, 4.1 to 4.1.3, 4.0 to 4.0.8, and 3.11 to 3.11.14.

How does CVE-2023-35131 affect Moodle?

CVE-2023-35131 affects Moodle versions 4.2, 4.1 to 4.1.3, 4.0 to 4.0.8, and 3.11 to 3.11.14 by allowing attackers to inject malicious content on the groups page, which can lead to cross-site scripting attacks.

What is the severity of CVE-2023-35131?

CVE-2023-35131 has a severity level of medium (6.1) according to the Common Vulnerability Scoring System (CVSS).

How can I fix CVE-2023-35131?