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CVE-2021-36396

Date: March 5, 2023

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

Language: PHP

Severity Score

Related Resources (4)

https://nvd.nist.gov/vuln/detail/CVE-2021-36396
https://moodle.org/mod/forum/discuss.php?d=424802
https://github.com/moodle/moodle
https://www.mend.io/vulnerability-database/CVE-2021-36396

Severity Score

Weakness Type (CWE)

Server-Side Request Forgery (SSRF)

CWE-918

CVSS v3.1

Base Score:
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

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