CVE-2023-5549

Moodle: insufficient capability checks when updating the parent of a course category

MEDIUM

5.3

CVSS Score

Published: November 9, 2023 at 07:37 PM UTC

Updated: June 17, 2026 at 06:48 AM UTC

3 products affected across 2 vendorsFedoraMoodleExtra Packages for Enterprise Linux

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Severity

MEDIUM5.3

Exploit prediction

EPSS 0.6%

SSVC

No known exploit

Description

Insufficient web service capability checks made it possible to move categories a user had permission to manage, to a parent category they did not have the capability to manage.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Extra Packages for Enterprise Linux · Fedora Projectrpm

95%

7.0

Fedora · Fedora Projectrpm

95%

Moodle · Moodle

95%

v < 3.9.243.11.0 ≤ v < 3.11.174.0.0 ≤ v < 4.0.114.1.0 ≤ v < 4.1.64.2.0 ≤ v < 4.2.3

Affected range stops below 3.11.17, so it looks safe — our inference, not a vendor statement

Affected range stops below 3.9.24, so it looks safe — our inference, not a vendor statement

Affected range stops below 4.0.11, so it looks safe — our inference, not a vendor statement

Affected range stops below 4.1.6, so it looks safe — our inference, not a vendor statement

Affected range stops below 4.2.3, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (3)

Patch

Source: [email protected]

http://git.moodle.org/gw?p=moodle.git&a=search&h=HEAD&st=commit&s=MDL-66730

Issue Trackingx_refsource_REDHATPatchThird Party Advisory

Source: [email protected]

https://bugzilla.redhat.com/show_bug.cgi?id=2243451

PatchVendor Advisory

Source: [email protected]

https://moodle.org/mod/forum/discuss.php?d=451590

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

5.3MEDIUM[email protected]

Attack Vector: NETWORK
Complexity: LOW
Privileges: NONE
User Interaction: NONE
Scope: UNCHANGED
Confidentiality: NONE
Integrity: LOW
Availability: NONE

Vector?

Quick Info

StatusMODIFIED

CWE

CWE-284CWE-269

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