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CVE-2023-30943

Moodle: tinymce loaders susceptible to arbitrary folder creation

6.5 MediumPublic exploitFix available

The vulnerability was found Moodle which exists because the application allows a user to control path of the older to create in TinyMCE loaders. A remote user can send a specially crafted HTTP request and create arbitrary folders on the system.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
None
User interaction
Required

What an attacker can affect

Confidentiality
None
Integrity
High
Availability
None

Exploit likelihood

6.83%Up 6.8 points since May 3, 2023
90%50%10%1%

What each source reports

CVE List Score used 6.5

Moodle: tinymce loaders susceptible to arbitrary folder creation

The vulnerability was found Moodle which exists because the application allows a user to control path of the older to create in TinyMCE loaders. A remote user can send a specially crafted HTTP request and create arbitrary folders on the system.

Record
CVE-2023-30943
CVSS 3.1
6.5 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
Weakness
CWE-73
Updated
2026-11-02
EUVDEUVD-2023-1440 6.5

The vulnerability was found Moodle which exists because the application allows a user to control path of the older to create in TinyMCE loaders. A remote user can send a specially crafted HTTP request and create arbitrary folders on the system.

Record
EUVD-2023-1440
CVSS 3.1
6.5 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
Updated
2026-11-03
GitHub AdvisoriesGHSA-22gj-8qj2-fj46 5.3

Moodle External Control of File Name or Path vulnerability

The vulnerability was found Moodle which exists because the application allows a user to control path of the older to create in TinyMCE loaders. A remote user can send a specially crafted HTTP request and create arbitrary folders on the system.

Record
GHSA-22gj-8qj2-fj46
CVSS 3.1
5.3 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Weakness
CWE-73, CWE-610
Updated
2026-11-02
NVD 6.5

The vulnerability was found Moodle which exists because the application allows a user to control path of the older to create in TinyMCE loaders. A remote user can send a specially crafted HTTP request and create arbitrary folders on the system.

Record
CVE-2023-30943
CVSS 3.1
6.5 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
CVSS 3.1
5.3 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Weakness
CWE-73, CWE-610
Updated
2026-11-02
OSV 6.5

Moodle: tinymce loaders susceptible to arbitrary folder creation

The vulnerability was found Moodle which exists because the application allows a user to control path of the older to create in TinyMCE loaders. A remote user can send a specially crafted HTTP request and create arbitrary folders on the system.

Record
CVE-2023-30943
CVSS 3.1
6.5 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
Weakness
CWE-73
Updated
2026-11-02
OSVGHSA-22gj-8qj2-fj46 5.3

Moodle External Control of File Name or Path vulnerability

The vulnerability was found Moodle which exists because the application allows a user to control path of the older to create in TinyMCE loaders. A remote user can send a specially crafted HTTP request and create arbitrary folders on the system.

Record
GHSA-22gj-8qj2-fj46
CVSS 3.1
5.3 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Weakness
CWE-610, CWE-73
Updated
2026-11-02
OSVUBUNTU-CVE-2023-30943 6.5

The vulnerability was found Moodle which exists because the application allows a user to control path of the older to create in TinyMCE loaders. A remote user can send a specially crafted HTTP request and create arbitrary folders on the system.

Record
UBUNTU-CVE-2023-30943
CVSS 3.1
6.5 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
CVSS 3.1
5.3 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Updated
2026-11-02
OSVBIT-moodle-2023-30943 No score

Moodle: tinymce loaders susceptible to arbitrary folder creation

The vulnerability was found Moodle which exists because the application allows a user to control path of the older to create in TinyMCE loaders. A remote user can send a specially crafted HTTP request and create arbitrary folders on the system.

Record
BIT-moodle-2023-30943
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
moodle/moodle
Packagist
 before 4.2.0-rc2
4.2.0-rc2
moodle
Bitnami
 4.1.0 up to 4.1.3
4.1.3
moodle/moodle
Packagist
 before 4.2.0-rc2, plus listed versions
v2.3.10v2.3.11v2.3.4v2.3.5v2.3.6
Show 45 moreShow less
v2.3.7v2.3.8v2.3.9v2.4.0v2.4.0-rc1v2.4.1v2.4.10v2.4.11v2.4.2v2.4.3v2.4.4v2.4.5v2.4.6v2.4.7v2.4.8v2.4.9v2.5.0v2.5.0-betav2.5.0-rc1v2.5.1v2.5.2v2.5.3v2.5.4v2.5.5v2.5.6v2.5.7v2.5.8v2.5.9v2.6.0v2.6.0-betav2.6.0-rc1v2.6.1v2.6.10v2.6.11v2.6.2v2.6.3v2.6.4v2.6.5v2.6.6v2.6.7v2.6.8v2.6.9v2.7.0v2.7.0-betav2.7.0-rc1
4.2.0-rc2
moodle
Ubuntu:Pro:16.04:LTS
 All versions, plus listed versions
2.7.9+dfsg-12.7.10+dfsg-12.7.11+dfsg-12.7.11+dfsg-22.7.12+dfsg-13.0.3+dfsg-0ubuntu13.0.3+dfsg-0ubuntu1+esm1
 None known
moodle
Ubuntu:Pro:18.04:LTS
 All versions, plus listed versions
3.0.3+dfsg-0ubuntu13.0.3+dfsg-0ubuntu1+esm1
 None known

Public exploits

Links only. Every CVE stores no exploit code.

Public exploits
SourceLinkDate
NucleiMoodle - Cross-Site Scripting/Remote Code Execution
PoC in GitHubChocapikk/CVE-2023-309432023-09-07
PoC in GitHubRubyCat1337/CVE-2023-309432024-03-21
PoC in GitHubd0rb/CVE-2023-309432023-08-31

History

History
RecordedChangedSources
aliasesEUVD
first indexedCVE List, GitHub Advisories, Nuclei, NVD, OSV, PoC in GitHub

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2023-30943 is a medium vulnerability (CVSS 6.5) in Moodle, published May 2, 2023. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 6.83%, the 94th percentile. Fixed in moodle/moodle 4.2.0-rc2.

References

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Left out here: 307 versions. The JSON record has them.

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