CVE-2025-3625Network attack vector

User login denial via unchecked MFA revocation

Published Apr 25, 2025 · Updated Apr 25, 2025

IDOR in Moodle LMS allows remote authenticated users to revoke another user's email MFA factor and disclose that user's name. The email-factor revoke/cancel action accepts a user-controlled account reference without checking that it belongs to the requester. MFA must be enabled, and email must be the victim's only available second factor for the action to block login; disclosed data is limited to the victim's name.

CVSS severity7.1
High
EPSS probability0.39%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

IDOR in Moodle LMS allows remote authenticated users to revoke another user's email MFA factor and disclose that user's name. The email-factor revoke/cancel action accepts a user-controlled account reference without checking that it belongs to the requester. MFA must be enabled, and email must be the victim's only available second factor for the action to block login; disclosed data is limited to the victim's name.

The record

CVE
CVE-2025-3625
Published
Apr 25, 2025
Updated
Apr 25, 2025
Vendor
Moodle
Product
Moodle LMS
Classifications
CWE-639, T1531
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 25, 2025CVE publishedPublication date reported by the CVE source.
  2. Apr 25, 2025Record 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=4.3.0 <4.3.12
  2. Affected versionversion=4.4.0 <4.4.8
  3. Affected versionversion=4.5.0 <4.5.4

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

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

Published CVSS scores

7.1Fedora ProjectCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:H

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-639Authorization Bypass Through User-Controlled Key
T1531Account Access Removal

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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