CVE-2023-30943Network attack vector

Arbitrary folder creation via unsanitized revision path

Published May 2, 2023 · Updated Aug 2, 2024

Path manipulation in Moodle LMS 4.1 through 4.1.2 allows remote attackers to create arbitrary folders via crafted HTTP requests. The TinyMCE language and asset loaders accept the revision path segment as raw text before using it in filesystem-related processing instead of restricting it to an integer. No authentication or user interaction is required, and the documented consequence is limited to unauthorized folder creation.

CVSS severity5.3
Medium
EPSS probability6.58%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Path manipulation in Moodle LMS 4.1 through 4.1.2 allows remote attackers to create arbitrary folders via crafted HTTP requests. The TinyMCE language and asset loaders accept the revision path segment as raw text before using it in filesystem-related processing instead of restricting it to an integer. No authentication or user interaction is required, and the documented consequence is limited to unauthorized folder creation.

The record

CVE
CVE-2023-30943
Published
May 2, 2023
Updated
Aug 2, 2024
Vendor
Moodle
Product
Moodle LMS
Classifications
CWE-610, CWE-73, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 2, 2023CVE publishedPublication date reported by the CVE source.
  2. Aug 2, 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=4.1.0 <4.1.3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Moodle · Moodle LMSversion=4.1.0 <4.1.3

Published CVSS scores

5.3GitHub Advisory DatabaseCVSS: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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-610Externally Controlled Reference to a Resource in Another Sphere
CWE-73External Control of File Name or Path
T1190Exploit Public-Facing Application

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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