CVE-2022-0985Network attack vector

Account deletion via missing capability check

Published Apr 29, 2022 · Updated Aug 2, 2024

Incorrect authorization in affected Moodle LMS releases allows remote authenticated users to delete accounts through bulk user upload. The bulk user-upload deletion path checks moodle/site:uploadusers but omits the separate moodle/user:delete capability before deleting selected users. Exploitation requires an authenticated role granted user-upload rights; it can remove user accounts despite an explicit denial of user-deletion rights.

CVSS severity4.3
Medium
EPSS probability0.56%
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 affected Moodle LMS releases allows remote authenticated users to delete accounts through bulk user upload. The bulk user-upload deletion path checks moodle/site:uploadusers but omits the separate moodle/user:delete capability before deleting selected users. Exploitation requires an authenticated role granted user-upload rights; it can remove user accounts despite an explicit denial of user-deletion rights.

The record

CVE
CVE-2022-0985
Published
Apr 29, 2022
Updated
Aug 2, 2024
Vendor
Moodle
Product
Moodle LMS
Classifications
CWE-863, T1531
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 29, 2022CVE publishedPublication date reported by the CVE source.
  2. Aug 2, 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=moodle 3.11.6, moodle 3.10.10, moodle 3.9.13

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Moodle · Moodle LMSversion=moodle 3.11.6, moodle 3.10.10, moodle 3.9.13

Published CVSS scores

4.0NIST National Vulnerability DatabaseAV:N/AC:L/Au:S/C:N/I:P/A:N
4.3NIST National Vulnerability DatabaseCVSS: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
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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