VulnerabilityModified
CVE-2021-21809
A command execution vulnerability exists in the default legacy spellchecker plugin in Moodle 3.10.
CRITICAL 9.1EPSS 24.2%
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 24.2%, higher than 98% of all known CVEs. Patch or mitigate before the next change window.
Description
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.
- CVSS 3.1
- 9.1 CRITICALCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
- EPSS
- 24.17% probability · 98th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-78
- Affected
- moodle/moodle
- Source
- talos-cna@cisco.com
References
- http://packetstormsecurity.com/files/164481/Moodle-SpellChecker-Path-Authenticated-Remote-Command-Execution.htmlExploit, Third Party Advisory, VDB Entry
- https://talosintelligence.com/vulnerability_reports/TALOS-2021-1277Exploit, Third Party Advisory
- http://packetstormsecurity.com/files/164481/Moodle-SpellChecker-Path-Authenticated-Remote-Command-Execution.htmlExploit, Third Party Advisory, VDB Entry
- https://talosintelligence.com/vulnerability_reports/TALOS-2021-1277Exploit, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.