Critical severity · published Nov 22, 2021
CVE-2021-3943
A flaw was found in Moodle in versions 3.11 to 3.11.3, 3.10 to 3.10.7, 3.9 to 3.9.10 and earlier unsupported versions
9.8
CVSS
2.4%
EPSS
No
On KEV
Description
A flaw was found in Moodle in versions 3.11 to 3.11.3, 3.10 to 3.10.7, 3.9 to 3.9.10 and earlier unsupported versions. A remote code execution risk when restoring backup files was identified.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)2.4% · higher than 84% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
MO
Moodle · Moodle
3.9.0 through 3.9.10; 3.10.0 through 3.10.7; 3.11.0 through 3.11.3 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-3943
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-3943
Issue Tracking
https://bugzilla.redhat.com/show_bug.cgi?id=2021963
Patch
https://moodle.org/mod/forum/discuss.php?d=429095
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