CVE-2026-55679Public exploitNetwork attack vectorHinoki check available

Unauthenticated command execution via installer input injection

Published Oct 14, 2026 · Updated Oct 14, 2026

Command injection in the WeGIA installer before 3.8.6 allows remote attackers to execute commands via unauthenticated POST data. The web/instalador/instalador.php endpoint passes usuario into shell_exec(), writes untrusted values into executable config.php, and concatenates nomebd into CREATE DATABASE. Exploitation requires a pre-installation state without config.php; the Linux reinstall flow executes commands as the web-server user, while injected configuration persists PHP code and permits application or data alteration and disruption.

CVSS severity6.5
Medium
EPSS probability0.43%
Next 30 days · Oct 19, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Command injection in the WeGIA installer before 3.8.6 allows remote attackers to execute commands via unauthenticated POST data. The web/instalador/instalador.php endpoint passes usuario into shell_exec(), writes untrusted values into executable config.php, and concatenates nomebd into CREATE DATABASE. Exploitation requires a pre-installation state without config.php; the Linux reinstall flow executes commands as the web-server user, while injected configuration persists PHP code and permits application or data alteration and disruption.

The record

CVE
CVE-2026-55679
Published
Oct 14, 2026
Updated
Oct 14, 2026
Vendor
LabReDeS - Laboratório de Redes, Desenvolvimento e Segurança
Product
WeGIA
Classifications
CWE-94, CWE-89, CWE-78, T1190, T1059.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 14, 2026CVE publishedPublication date reported by the CVE source.
  2. Oct 14, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 3.8.6

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

LabReDeS - Laboratório de Redes, Desenvolvimento e Segurança · WeGIAversion=< 3.8.6

Published CVSS scores

6.5GitHub_MCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:L

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Activity data is delayed. The latest report is Sep 28, 2026.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 22, 2026Sep 28, 2026
Latest reporting daySep 28, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-94Improper Control of Generation of Code ('Code Injection')
CWE-89Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
T1190Exploit Public-Facing Application
T1059.004Unix Shell

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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