Resource exhaustion in Moodle

CVE-2020-14322

In Moodle before 3.9.1, 3.8.4, 3.7.7 and 3.5.13, yui_combo needed to limit the amount of files it can load to help mitigate the risk of denial of service.

EPSS: 0.008 (53.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

  • Moodle — versions 3.9.0
  • N/a Moodle — versions Moodle 3.9, 3.8 to 3.8.3, 3.7 to 3.7.6, 3.5 to 3.5.12 and earlier unsupported versions

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2020-14322?
CVE-2020-14322 is a high-severity vulnerability in Moodle, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 7.5/10. Published 2022-08-16.
How severe is CVE-2020-14322?
High severity. CVSS v3 base score is 7.5 out of 10.
Is CVE-2020-14322 known to be exploited?
2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.