Home/CVE/A remote code execution risk when restoring backup files originating from Moodle 1.9 was identified.
CVE

CVE-2022-40314

A remote code execution risk when restoring backup files originating from Moodle 1.9 was identified.

A remote code execution risk when restoring backup files originating from Moodle 1.9 was identified.

CRITICAL · CVSS 9.8 EPSS 0.06064
Schedule remediation
  • EPSS percentile: top 9% of all CVEs by exploitation likelihood
  • SSVC automatable: yes - attacks can be scripted at scale
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-502Deserialization of Untrusted Data
▤

Affected Products & Versions

3
moodle>= 3.9 and < 3.9.17
moodle>= 3.11 and < 3.11.10
moodle>= 4.0 and < 4.0.4
▤

Affected Packages

1
Language-ecosystem packages (from OSV) tied to this CVE, with the version that fixes it - the dependency-level detail NVD doesn’t carry.
Packagist moodle/moodle CRITICAL fixed in 3.9.17
▣

Scoring & Timeline

9.8
CRITICAL · CVSS v3.1 · patrick@puiterwijk.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD30 Sep 2022 · 05:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
yes
Technical impact
total
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
🔗

References & Sources

2
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://bugzilla.redhat.com/show_bug.cgi?id=2128147Issue TrackingThird Party Advisory
https://moodle.org/mod/forum/discuss.php?d=438393PatchVendor Advisory
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