CVE-2022-2986Network attack vector

H5P library state changes via missing CSRF token

Published Oct 6, 2022 · Updated Aug 3, 2024

Cross-site request forgery in Moodle LMS 3.11 through 3.11.8 and 4.0 through 4.0.2 allows remote attackers to alter H5P library states. The H5P library enable and disable actions accept a state-changing request without validating Moodle's sesskey CSRF token. Exploitation requires an authenticated administrator to follow attacker-controlled content, after which installed H5P libraries can be enabled or disabled.

CVSS severity8.8
High
EPSS probability0.42%
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 through 3.11.8 and 4.0 through 4.0.2 allows remote attackers to alter H5P library states. The H5P library enable and disable actions accept a state-changing request without validating Moodle's sesskey CSRF token. Exploitation requires an authenticated administrator to follow attacker-controlled content, after which installed H5P libraries can be enabled or disabled.

The record

CVE
CVE-2022-2986
Published
Oct 6, 2022
Updated
Aug 3, 2024
Vendor
Moodle
Product
Moodle LMS
Classifications
CWE-352, T1204.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 6, 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=moodle 4.0.3 and moodle 3.11.9

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Moodle · Moodle LMSversion=moodle 4.0.3 and moodle 3.11.9

Published CVSS scores

8.8NIST NVDCVSS: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.

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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-352Cross-Site Request Forgery (CSRF)
T1204.001Malicious Link

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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