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Vulnerabilities

Vulnerability · CVE-2017-12157

In Moodle 3.x, various course reports allow teachers to view details about users in the groups they can't access.

Published Sep 18, 2017 · catalog updated Jun 17, 2026 · In Moodle 3.x, various

Last checked Nov 4, 2026. A connected source was read within the last 7 days.

Check if you run it

No confirmed exploitation is on record for CVE-2017-12157. EPSS is 1.10%. Act only if a listed version of In Moodle 3.x, various is installed.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (In Moodle 3.x, various).
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.

Same product and reporting

Severity
Medium4.3
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
1.10%
Remediation
Advisory link
Affected products
cpe moodle/moodle

In Moodle 3.x, various course reports allow teachers to view details about users in the groups they can't access.

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/moodle3.0.0

How to fix CVE-2017-12157

What to do

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

Should you patch?

No confirmed exploitation is on record for CVE-2017-12157. EPSS is 1.10%. Act only if a listed version of In Moodle 3.x, various is installed.

Which versions are affected?

Compare what you have installed with 3.0.0. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-200: Exposure of Sensitive Information. EPSS 1.10%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. 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. Sep 18, 2017 · Monitored products — high

    Detected

    In Moodle 3.x, various course reports allow teachers to view details about users in the groups they can't access.

  2. Jun 17, 2026 · Monitored products — high

    Updated

    In Moodle 3.x, various course reports allow teachers to view details about users in the groups they can't access.

Sources

References

Freshness

Last verified in this catalog Nov 4, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • CVE.orgNov 4, 2026
  • Monitored products — highNov 4, 2026