CVE-2021-36396

Severity CVSS v4.0:

Pending analysis

Type:

CWE-918 Server-Side Request Forgery (SSRF)

Publication date:

06/03/2023

Last modified:

05/03/2025

Description

In Moodle, insufficient redirect handling made it possible to blindly bypass cURL blocked hosts/allowed ports restrictions, resulting in a blind SSRF risk.

Impact

Vector 3.x

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N CVSS v3.1 Severity and Metrics:

Base Score: 7.50 HIGH
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): High
Availability (A): None

Base Score 3.x

7.50

Severity 3.x

HIGH

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:a:moodle:moodle::::::::		3.9.8 (excluding)
cpe:2.3:a:moodle:moodle::::::::	3.10.0 (including)	3.10.5 (excluding)
cpe:2.3:a:moodle:moodle::::::::	3.11.0 (including)	3.11.1 (excluding)

To consult the complete list of CPE names with products and versions, see this page

CVE-2021-36396

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools