CVE-2025-62394Network attack vector

Quiz information disclosure via omitted active-enrollment filter

Published Oct 23, 2025 · Updated Oct 23, 2025

Incorrect authorization in Moodle LMS 4.5.0 through 4.5.6 and 5.0.0 through 5.0.2 exposes quiz details to remote authenticated users. The mod_quiz notification helper calls get_enrolled_users without the onlyactive flag, so suspended or expired course enrolments remain in its recipient list. An account with an inactive course enrolment is required, and exposure is limited to course information contained in quiz messages.

CVSS severity4.3
Medium
EPSS probability0.21%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Incorrect authorization in Moodle LMS 4.5.0 through 4.5.6 and 5.0.0 through 5.0.2 exposes quiz details to remote authenticated users. The mod_quiz notification helper calls get_enrolled_users without the onlyactive flag, so suspended or expired course enrolments remain in its recipient list. An account with an inactive course enrolment is required, and exposure is limited to course information contained in quiz messages.

The record

CVE
CVE-2025-62394
Published
Oct 23, 2025
Updated
Oct 23, 2025
Vendor
Moodle
Product
Moodle LMS
Classifications
CWE-863
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Oct 23, 2025CVE publishedPublication date reported by the CVE source.
  2. Oct 23, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=4.5.0 <4.5.7
  2. Affected versionversion=5.0.0 <5.0.3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Moodle · Moodle LMSversion=4.5.0 <4.5.7; version=5.0.0 <5.0.3

Published CVSS scores

4.3Fedora ProjectCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-863Incorrect Authorization

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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