CVE-2025-3627Network attack vector

Authenticated data disclosure before second-factor verification

Published Apr 25, 2025 · Updated Apr 25, 2025

Improper authentication in affected Moodle LMS releases allows remote authenticated users to read some of their own data before completing MFA. Moodle has not published the affected code locus or the operation that makes data available to a session after only the first login factor. Exploitation requires MFA to be enabled and valid first-factor credentials; the disclosed consequence is limited to reading some data associated with the partially authenticated account.

CVSS severity4.3
Medium
EPSS probability0.32%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper authentication in affected Moodle LMS releases allows remote authenticated users to read some of their own data before completing MFA. Moodle has not published the affected code locus or the operation that makes data available to a session after only the first login factor. Exploitation requires MFA to be enabled and valid first-factor credentials; the disclosed consequence is limited to reading some data associated with the partially authenticated account.

The record

CVE
CVE-2025-3627
Published
Apr 25, 2025
Updated
Apr 25, 2025
Vendor
Moodle
Product
Moodle LMS
Classifications
CWE-287, T1078
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

4.3Fedora ProjectCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/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-287Improper Authentication
T1078Valid Accounts

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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