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Vulnerabilities

Vulnerability · CVE-2020-14321

In Moodle before 3.9.1, 3.8.4, 3.7.7 and 3.5.13, teachers of a course were able to assign themselves the manager role within that course.

Published Aug 16, 2022 · catalog updated Jun 17, 2026 · In Moodle before 3.9.1,

Last checked Nov 7, 2026. A connected source was read within the last 7 days.

Check this week

CVE-2020-14321 is not in CISA KEV. FIRST estimates a 15.99% chance of exploitation in the next 30 days. Check whether you run In Moodle before 3.9.1,.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (In Moodle before 3.9.1,).
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.

Same product and reporting

Severity
High8.8
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
15.99%
Remediation
Version ranges on file
Affected products
cpe moodle/moodle

In Moodle before 3.9.1, 3.8.4, 3.7.7 and 3.5.13, teachers of a course were able to assign themselves the manager role within that course.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • cpe moodle/moodle3.9.0
  • cpe moodle/moodle< 3.5.13
  • cpe moodle/moodle< 3.7.7
  • cpe moodle/moodle< 3.8.4

How to fix CVE-2020-14321

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

CVE-2020-14321 is not in CISA KEV. FIRST estimates a 15.99% chance of exploitation in the next 30 days. Check whether you run In Moodle before 3.9.1,.

Which versions are affected?

Compare what you have installed with 3.9.0, < 3.5.13, < 3.7.7, < 3.8.4. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-863: Incorrect Authorization. EPSS 15.99%. There is no CISA KEV listing. A public exploit reference is linked in Sources. That is not the same as confirmed exploitation. Use the source links for the original advisory.

Technology hubs

Moodle security

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Aug 16, 2022 · Monitored products — high

    Detected

    In Moodle before 3.9.1, 3.8.4, 3.7.7 and 3.5.13, teachers of a course were able to assign themselves the manager role within that course.

  2. Jun 17, 2026 · Monitored products — high

    Updated

    In Moodle before 3.9.1, 3.8.4, 3.7.7 and 3.5.13, teachers of a course were able to assign themselves the manager role within that course.

Sources

  • CVE.orgVulnerability recordCVE-2020-14321

    Official CVE identifier

    cve.org
  • Monitored products — highVendor advisoryCVE-2020-14321

    In Moodle before 3.9.1, 3.8.4, 3.7.7 and 3.5.13, teachers of a course were able to assign themselves the manager role within that course.

    nvd.nist.gov
  • Metasploit ModulesPublic exploit moduleexploit_multi/http/moodle_teacher_enrollment_priv_esc_to_rce

    Public module reference (good). Module source is not copied into this catalog.

    rapid7.com

References

Freshness

Last verified in this catalog Nov 7, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • Metasploit ModulesNov 7, 2026
  • CVE.orgNov 4, 2026
  • Monitored products — highNov 4, 2026