CVE-2024-43430Network attack vector

Unauthorized Quiz override changes via missing access checks

Published Nov 11, 2024 · Updated Nov 12, 2024

Improper access control in affected Moodle LMS releases allows remote attackers to alter Quiz overrides through the external API. The external Quiz override methods accept override changes without enforcing sufficient access-control checks. No prior privileges or user interaction are required, and the bounded consequence is unauthorized modification of quiz settings.

CVSS severity5.3
Medium
EPSS probability0.33%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper access control in affected Moodle LMS releases allows remote attackers to alter Quiz overrides through the external API. The external Quiz override methods accept override changes without enforcing sufficient access-control checks. No prior privileges or user interaction are required, and the bounded consequence is unauthorized modification of quiz settings.

The record

CVE
CVE-2024-43430
Published
Nov 11, 2024
Updated
Nov 12, 2024
Vendor
Moodle
Product
Moodle LMS
Classifications
CWE-276, T1565.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Nov 11, 2024CVE publishedPublication date reported by the CVE source.
  2. Nov 12, 2024Record 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=0 <4.1.12
  2. Affected versionversion=4.2 <4.2.9
  3. Affected versionversion=4.3 <4.3.6
  4. Affected versionversion=4.4 <4.4.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Moodle · Moodle LMSversion=0 <4.1.12; version=4.2 <4.2.9; version=4.3 <4.3.6; version=4.4 <4.4.2

Published CVSS scores

5.3Fedora ProjectCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-276Incorrect Default Permissions
T1565.001Stored Data Manipulation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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