CVE-2021-36396

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

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://moodle.org/mod/forum/discuss.php?d=424802	Patch Vendor Advisory
https://moodle.org/mod/forum/discuss.php?d=424802	Patch Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:moodle:moodle::::::::
	cpe:2.3:a:moodle:moodle::::::::
	cpe:2.3:a:moodle:moodle::::::::

History

21 Nov 2024, 06:13

Type	Values Removed	Values Added
References	~~() https://moodle.org/mod/forum/discuss.php?d=424802 - Patch, Vendor Advisory~~	() https://moodle.org/mod/forum/discuss.php?d=424802 - Patch, Vendor Advisory

13 Mar 2023, 15:23

Type	Values Removed	Values Added
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 7.5
CPE		cpe:2.3:a:moodle:moodle::::::::
CWE		CWE-918
References	~~(MISC) https://moodle.org/mod/forum/discuss.php?d=424802 -~~	(MISC) https://moodle.org/mod/forum/discuss.php?d=424802 - Patch, Vendor Advisory

07 Mar 2023, 13:54

Type	Values Removed	Values Added
New CVE

Information

Published : 2023-03-06 21:15

Updated : 2025-03-05 16:15

NVD link : CVE-2021-36396

Mitre link : CVE-2021-36396

CVE.ORG link : CVE-2021-36396

JSON object : View

Products Affected

moodle

moodle

CWE

CWE-918

Server-Side Request Forgery (SSRF)

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7.5 /10