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Fencer Vulns
high 8.8

CVE-2019-11409 in the critical feed json

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…

published 2019-06-17 7 y ago modified 2026-06-17 4 mo ago also EUVD-2019-3084

cvss
8.8
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
87.5%
EPSS 87.5% chance of exploitation in 30 days, percentile 99.7%
public exploits
2
Metasploit, Exploit-DB

Summary

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.

Patch / fix

Timeline

  1. First public exploit (Metasploit exploit/unix/webapp/fusionpbx_operator_panel_exec_cmd_exec)
  2. Published

Exploit prediction

87.48% chance of exploitation in the next 30 days, higher than 99.7% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • Metasploit exploit/unix/webapp/fusionpbx_operator_panel_exec_cmd_exec FusionPBX Operator Panel exec.php Command Execution metasploit exploit, excellent rank, 2019-06-06
  • EDB-47697 FusionPBX - Operator Panel exec.php Command Execution (Metasploit) remote, 2019-11-20
  • packetstormsecurity.com http://packetstormsecurity.com/files/153256/FusionPBX-4.4.3-Remote-Command-Execution.html referenced PoC, tagged "exploit" by a source, unverified
  • blog.gdssecurity.com https://blog.gdssecurity.com/labs/2019/6/7/rce-using-caller-id-multiple-vulnerabilities-in-fusionpbx.html referenced PoC, tagged "exploit" by a source, unverified
  • packetstormsecurity.com http://packetstormsecurity.com/files/155344/FusionPBX-Operator-Panel-exec.php-Command-Execution.html referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.1 8.8 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 6.5 AV:N/AC:L/Au:S/C:P/I:P/A:P

Classification

Weakness
  • CWE-78 Improper Neutralization of Special Elements used in an OS Command

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.