CVE-2024-34007Network attack vector

Forced logout via missing MFA session-key validation

Published May 31, 2024 · Updated Nov 21, 2024

Cross-site request forgery in Moodle LMS 4.3 through 4.3.3 allows remote attackers to terminate authenticated users' MFA sessions. The logout branch in admin/tool/mfa/auth.php accepted the logout parameter and called manager::mfa_logout() without validating a session key. An authenticated user must reach the MFA page through an attacker-controlled request; the bounded effect is termination of that user's session.

CVSS severity8.8
High
EPSS probability0.35%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Cross-site request forgery in Moodle LMS 4.3 through 4.3.3 allows remote attackers to terminate authenticated users' MFA sessions. The logout branch in admin/tool/mfa/auth.php accepted the logout parameter and called manager::mfa_logout() without validating a session key. An authenticated user must reach the MFA page through an attacker-controlled request; the bounded effect is termination of that user's session.

The record

CVE
CVE-2024-34007
Published
May 31, 2024
Updated
Nov 21, 2024
Vendor
Moodle
Product
Moodle LMS
Classifications
CWE-352
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 31, 2024CVE publishedPublication date reported by the CVE source.
  2. Nov 21, 2024Record 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 <=4.3.3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Moodle · Moodle LMSversion=4.3 <=4.3.3

Published CVSS scores

8.8CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/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.

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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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-352Cross-Site Request Forgery (CSRF)

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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