CVE-2019-11409

Name: CVE-2019-11409
Creator: NVD / NIST
Published: 2019-06-17T19:15:11.327+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.8/10EPSS 87.48%

Last modified Jun 17, 2026

CVE-2019-11409 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. app/operator_panel/exec.php in the Operator Panel module in FusionPBX 4.4.3 suffers from a command injection vulnerability due to a lack of input validation that allows authenticated non-administrative attackers to execute commands on the host. This can further lead to remote code execution when combined with an XSS vulnerability also present in the FusionPBX Operator Panel module.. EPSS estimates a 87.48% chance of exploitation in the next 30 days.

Description

app/operator_panel/exec.php in the Operator Panel module in FusionPBX 4.4.3 suffers from a command injection vulnerability due to a lack of input validation that allows authenticated non-administrative attackers to execute commands on the host. This can further lead to remote code execution when combined with an XSS vulnerability also present in the FusionPBX Operator Panel module.

Metrics

CVSS 3.1

8.8/10

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

EPSS Probability

87.48%

99.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-78

Affected Software

Vendor	Product	Versions
Fusionpbx	Fusionpbx	4.4.3

References

http://packetstormsecurity.com/files/153256/FusionPBX-4.4.3-Remote-Command-Execution.htmlExploit, Third Party Advisory, VDB Entry
http://packetstormsecurity.com/files/155344/FusionPBX-Operator-Panel-exec.php-Command-Execution.htmlExploit, Third Party Advisory, VDB Entry
https://blog.gdssecurity.com/labs/2019/6/7/rce-using-caller-id-multiple-vulnerabilities-in-fusionpbx.htmlExploit, Third Party Advisory
https://github.com/fusionpbx/fusionpbx/commit/e43ca27ba2d9c0109a6bf198fe2f8d79f63e0611Patch, Third Party Advisory
http://packetstormsecurity.com/files/153256/FusionPBX-4.4.3-Remote-Command-Execution.htmlExploit, Third Party Advisory, VDB Entry
http://packetstormsecurity.com/files/155344/FusionPBX-Operator-Panel-exec.php-Command-Execution.htmlExploit, Third Party Advisory, VDB Entry
https://blog.gdssecurity.com/labs/2019/6/7/rce-using-caller-id-multiple-vulnerabilities-in-fusionpbx.htmlExploit, Third Party Advisory
https://github.com/fusionpbx/fusionpbx/commit/e43ca27ba2d9c0109a6bf198fe2f8d79f63e0611Patch, Third Party Advisory

Timeline

Published: Jun 17, 2019
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2019-11409?

How severe is CVE-2019-11409?

CVE-2019-11409 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 87.48% probability of exploitation in the next 30 days.

How do I fix CVE-2019-11409?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2019-11409?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST