Moodle command execution vulnerability exists in the default legacy spellchecker plugin

Description

References

• nvd.nist.gov/vuln/detail/CVE-2021-21809 · ADVISORY
• moodle/moodle · PACKAGE
• talosintelligence.com/vulnerability_reports/TALOS-2021-1277 · WEB
• packetstormsecurity.com/files/164481/Moodle-SpellChecker-Path-Authenticated-Remote-Command-Execution.html · WEB

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