CVE-2025-3644Network attack vector

Unauthorized course-section deletion via unchecked AJAX action

Published Apr 25, 2025 · Updated Apr 28, 2025

Incorrect authorization in Moodle LMS allows remote authenticated users to delete course sections they lack permission to modify. The AJAX section-delete action fails to honor course_can_delete_section(), which determines whether the course format permits removal. A logged-in user who can reach the action can alter course structure beyond the permissions assigned to that account.

CVSS severity4.3
Medium
EPSS probability0.31%
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 allows remote authenticated users to delete course sections they lack permission to modify. The AJAX section-delete action fails to honor course_can_delete_section(), which determines whether the course format permits removal. A logged-in user who can reach the action can alter course structure beyond the permissions assigned to that account.

The record

CVE
CVE-2025-3644
Published
Apr 25, 2025
Updated
Apr 28, 2025
Vendor
Moodle
Product
Moodle LMS
Classifications
CWE-863, T1485
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 25, 2025CVE publishedPublication date reported by the CVE source.
  2. Apr 28, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

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

  1. Affected versionversion=4.1.0 <4.1.18
  2. Affected versionversion=4.3.0 <4.3.12
  3. Affected versionversion=4.4.0 <4.4.8
  4. Affected versionversion=4.5.0 <4.5.4

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Moodle · Moodle LMSversion=4.1.0 <4.1.18; version=4.3.0 <4.3.12; version=4.4.0 <4.4.8; version=4.5.0 <4.5.4

Published CVSS scores

4.3Fedora ProjectCVSS:3.1/AV:N/AC:L/PR:L/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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-863Incorrect Authorization
T1485Data Destruction

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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