CVE-2022-0335Network attack vector

Cross-site request forgery via missing session-key validation

Published Jan 25, 2022 · Updated Aug 2, 2024

Cross-site request forgery in Moodle LMS 3.11.4 and earlier allows remote attackers to delete badge alignments via crafted requests. The remove action in badges/alignment_action.php calls delete_alignment with the supplied alignment identifier without validating a session key, while the generated delete link omits that key. Exploitation requires an authenticated victim with badge-configuration permission to follow an attacker-controlled request, and it is limited to deleting a badge alignment.

CVSS severity8.8
High
EPSS probability0.61%
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 3.11.4 and earlier allows remote attackers to delete badge alignments via crafted requests. The remove action in badges/alignment_action.php calls delete_alignment with the supplied alignment identifier without validating a session key, while the generated delete link omits that key. Exploitation requires an authenticated victim with badge-configuration permission to follow an attacker-controlled request, and it is limited to deleting a badge alignment.

The record

CVE
CVE-2022-0335
Published
Jan 25, 2022
Updated
Aug 2, 2024
Vendor
Moodle
Product
Moodle LMS
Classifications
CWE-352, T1189
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 25, 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 3.11.5, moodle 3.10.9 and moodle 3.9.12

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Moodle · Moodle LMSversion=moodle 3.11.5, moodle 3.10.9 and moodle 3.9.12

Published CVSS scores

8.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
6.8NIST NVDAV:N/AC:M/Au:N/C:P/I:P/A:P

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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-352Cross-Site Request Forgery (CSRF)
T1189Drive-by Compromise

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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