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CVE-2021-30461

CriticalPublished

A remote code execution issue was discovered in the web UI of VoIPmonitor before 24.61. When the recheck option is used, the user-supplied SPOOLDIR value...

Published: May 29, 2021
Updated: Aug 3, 2024
Assigning CNA: mitre
Evidence observed: Aug 7, 2026

Primary CVSS

9.8/ 10Critical

nvd · CVSS 3.1

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS probability estimate

36.6%

Moderate · next 30 days

Percentile: 98.5%
Model date: Sep 21, 2026

EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.

Summary

A remote code execution issue was discovered in the web UI of VoIPmonitor before 24.61. When the recheck option is used, the user-supplied SPOOLDIR value (which might contain PHP code) is injected into config/configuration.php.

Sources

CVE-2021-30461Exploit
CVE-2021-30461
CVE-2021-30461Exploit
Python exploit for CVE-2021-30461 providing unauthenticated remote code execution on VoIPmonitor < 24.60 with browser-based shell access.
CVE-2021-30461Exploit
VOIP RCE

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