Vulnerability · Published Mar 6, 2023 · Assigned by fedora
CVE-2021-36396
High 7.5
In plain English
A high-severity server-side request forgery in Moodle. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.4% (higher than 73% of all known vulnerabilities). Ready-made attack tooling exists: public proof-of-concept code. Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)7.5High
Exploit odds (30 days)1.4%top 26.9% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack tooling1Public PoC
Official description
In Moodle, insufficient redirect handling made it possible to blindly bypass cURL blocked hosts/allowed ports restrictions, resulting in a blind SSRF risk.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Packagist | moodle/moodle | 3.11.1 | GHSA-4rmj-w58m-fvch |
| Packagist | moodle/moodle | 3.10.5 | GHSA-4rmj-w58m-fvch |
| Packagist | moodle/moodle | 3.9.8 | GHSA-4rmj-w58m-fvch |
Affected products (as reported)
Weakness: CWE-918 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N