CVE-2021-21809
high-risk
Published 2021-06-23
A command execution vulnerability exists in the default legacy spellchecker plugin in Moodle 3.10. A specially crafted series of HTTP requests can lead to command execution. An attacker must have administrator privileges to exploit this vulnerabilities.
Do I need to act?
!
72.9% chance of exploitation in next 30 days
EPSS score — higher than 27% of all CVEs
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
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Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
9
CVSS 9.1/10
Critical
NETWORK
/ LOW complexity
Affected Products (1)
Affected Vendors
References (4)
55
/ 100
high-risk
Severity
31/34 · Critical
Exploitability
19/34 · Moderate
Exposure
5/34 · Minimal