The redirect URI in the LTI authorization endpoint required extra sanitizing to prevent reflected XSS and open redirect risks. Moodle versions 3.10 to 3.10.3, 3.9 to 3.9.6, 3.8 to 3.8.8 and earlier unsupported versions are affected.

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - The redirect URI in the LTI authorization endpoint required extra sanitizing to prevent reflected XSS and     open redirect risks. Moodle versions 3.10 to 3.10.3, 3.9 to 3.9.6, 3.8 to 3.8.8 and earlier unsupported     versions are affected. (CVE-2021-32478)

Note that Nessus relies on the presence of the package as reported by the vendor.

The version of Moodle installed on the remote host is 3.5.x prior to 3.5.18, 3.8.x prior to 3.8.9, 3.9.x prior to 3.9.7 or 3.10.x prior to 3.10.4. It is, therefore, affected by multiple vulnerabilities:

 - An authorization issue allowing teachers to export a CSV file containing forums from all courses. (CVE-2021-32472)

 - An information disclosure allowing students to see their quiz grade through the quiz web service before its release. (CVE-2021-32473)

 - An SQL injection on MNet enabled sites via an XML RPC call from the connected peer host for site administrators or users having access to the keypair. (CVE-2021-32474)

 - A stored Cross-Site Scripting vulnerability through the ID number displayed in the quiz grading report. (CVE-2021-32475)

 - A Denial of Service (DoS) due to user file upload limits not being enforced in the draft files area. (CVE-2021-32476)

 - An information disclosure exposing the last time a user accessed the mobile page on its profile page. (CVE-2021-32477)

 - A Cross-Site Scripting (XSS) and open redirect lnerability through the redirect URI of the the LTI authorization endpoint. (CVE-2021-32478)

 - A vulnerable H5P PHP version 1.24 embedded library.

Note that the scanner has not attempted to exploit this issue but has instead relied only on application's self-reported version number.

ID	Name	Product	Family	Severity
262812	Linux Distros Unpatched Vulnerability : CVE-2021-32478	Nessus	Misc.	medium
113625	Moodle 3.10.x < 3.10.4 Multiple Vulnerabilities	Web App Scanning	Component Vulnerability	high
113624	Moodle 3.9.x < 3.9.7 Multiple Vulnerabilities	Web App Scanning	Component Vulnerability	high
113623	Moodle 3.8.x < 3.8.9 Multiple Vulnerabilities	Web App Scanning	Component Vulnerability	high
113622	Moodle 3.5.x < 3.5.18 Multiple Vulnerabilities	Web App Scanning	Component Vulnerability	high

Detections

Analytics

CVE-2021-32478

medium

Tenable Plugins

medium

high

high

high

high