CVE-2019-11409
HighPublic exploitapp/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.
Published Jun 17, 2019 · Updated Jul 8, 2026
Key Facts
Patch immediately- CVE-2019-11409 is a high-severity vulnerability (CVSS 8.8 v3.1) affecting Fusionpbx.
- It is not listed in any known-exploited vulnerabilities catalog. Public exploit code is available.
- EPSS estimates a 87% probability of exploitation in the next 30 days.
- No fixed version is listed yet; check the vendor advisory for mitigations.
- Brandefense priority: patch immediately, because it is very likely to be exploited soon.
CVSS v3.1
8.8
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS (30-day exploit likelihood)
87%
Higher than 99.7% of all scored CVEs
Exploited in the wild
No known
Not in a known-exploited catalog
Public exploit code
Available
Proof-of-concept or weaponized module
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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.
Affected Products
1 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| FusionpbxFusionpbx | 4.4.3 | n/a |
Timeline
Publicly disclosed
Jun 17, 2019
Last updated
Jul 8, 2026
Weakness Type
- CWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
References
- patchhttps://github.com/fusionpbx/fusionpbx/commit/e43ca27ba2d9c0109a6bf198fe2f8d79f63e0611
- exploithttp://packetstormsecurity.com/files/153256/FusionPBX-4.4.3-Remote-Command-Execution.html
- exploithttp://packetstormsecurity.com/files/155344/FusionPBX-Operator-Panel-exec.php-Command-Execution.html
- exploithttps://blog.gdssecurity.com/labs/2019/6/7/rce-using-caller-id-multiple-vulnerabilities-in-fusionpbx.html
- exploitMSF fusionpbx_operator_panel_exec_cmd_exec.rb
FAQ
Common Questions.
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.
Affected: Fusionpbx versions 4.4.3. The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
No fixed version is listed yet; check the vendor advisory for mitigations.
Brandefense priority: patch immediately, because it is very likely to be exploited soon.
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