CVE-2021-32474Network attack vector

Database query execution via MNet XML-RPC injection

Published Mar 11, 2022 · Updated Aug 3, 2024

Blind SQL injection in affected Moodle LMS releases allows remote authenticated users to execute database queries through MNet XML-RPC. The MNet authentication path embeds untrusted values from an authenticated peer XML-RPC call into an SQL statement without sufficient neutralization. Reachability requires MNet to be enabled and configured plus site-administrator access or possession of the peer keypair, and successful injection can read or alter Moodle database data.

CVSS severity7.2
High
EPSS probability0.93%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Blind SQL injection in affected Moodle LMS releases allows remote authenticated users to execute database queries through MNet XML-RPC. The MNet authentication path embeds untrusted values from an authenticated peer XML-RPC call into an SQL statement without sufficient neutralization. Reachability requires MNet to be enabled and configured plus site-administrator access or possession of the peer keypair, and successful injection can read or alter Moodle database data.

The record

CVE
CVE-2021-32474
Published
Mar 11, 2022
Updated
Aug 3, 2024
Vendor
Moodle
Product
Moodle LMS
Classifications
CWE-89, T1190
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Mar 11, 2022CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 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=3.10 to 3.10.3, 3.9 to 3.9.6, 3.8 to 3.8.8, 3.5 to 3.5.17

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Moodle · Moodle LMSversion=3.10 to 3.10.3, 3.9 to 3.9.6, 3.8 to 3.8.8, 3.5 to 3.5.17

Published CVSS scores

6.5NIST NVDAV:N/AC:L/Au:S/C:P/I:P/A:P
7.2NIST NVDCVSS:3.1/AV:N/AC:L/PR:H/UI:N/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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-89Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
T1190Exploit Public-Facing Application

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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