cve.bz

CVE-2021-21809

9.1 criticalEPSS 24%

Critical (9.1) in moodle moodle. EPSS 24% chance of exploitation in the next 30 days.

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.

Severity

CVSS 3.1

9.1 critical
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
EPSS
24% chance of exploitation in the next 30 days; higher than 97% of CVEs (scores of 2026-10-31)
CWE
CWE-78
Published
Modified
Record from
the NVD, synced

Affected

References

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