Vulnerability · Published Mar 6, 2023 · Assigned by fedora

CVE-2021-36395

High 7.5

In plain English

A high-severity uncontrolled resource consumption in Moodle. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.7% (higher than 55% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)7.5High
Exploit odds (30 days)0.7%top 45.4% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

In Moodle, the file repository's URL parsing required additional recursion handling to mitigate the risk of recursion denial of service.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Packagistmoodle/moodle3.11.1GHSA-273w-7fxj-pcp6
Packagistmoodle/moodle3.10.5GHSA-273w-7fxj-pcp6
Packagistmoodle/moodle3.9.8GHSA-273w-7fxj-pcp6

Affected products (as reported)

VendorProductVersions
n/a Moodle 3.11, 3.10 to 3.10.4, 3.9 to 3.9.7 and earlier unsupported versions

Weakness: CWE-400, CWE-674 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References