SB20260423169 - Multiple vulnerabilities in WeGIA

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Main Vulnerability Database SB20260423169

SB20260423169 - Multiple vulnerabilities in WeGIA

Published: April 23, 2026

Security Bulletin ID SB20260423169
CSH Severity
High
Patch available
YES
Number of vulnerabilities 3
Exploitation vector Remote access
Highest impact Code execution

Breakdown by Severity

High 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 3 vulnerabilities.


1) Missing Authentication for Critical Function (CVE-ID: CVE-2026-28408)

CWE-ID: CWE-306 - Missing Authentication for Critical Function

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber


The vulnerability allows a remote attacker to inject unauthorized data.

The vulnerability exists due to improper access control in adicionar_tipo_docs_atendido.php when handling direct requests to the file URL. A remote attacker can send a specially crafted request to inject unauthorized data.

The script does not go through the project's central controller, allowing access to features exclusive to employees.


2) OS Command Injection (CVE-ID: CVE-2026-28409)

CWE-ID: CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber


The vulnerability allows a remote attacker to execute arbitrary os commands.

The vulnerability exists due to improper neutralization of special elements used in an os command in the database restoration functionality in config_funcoes.php when restoring a backup file with a crafted filename. A remote attacker can upload a backup file with a malicious filename and trigger a restore action to execute arbitrary os commands.

Exploitation results in command execution as the web server user.


3) PHP External Variable Modification (CVE-ID: CVE-2026-28411)

CWE-ID: CWE-473 - PHP External Variable Modification

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber


The vulnerability allows a remote attacker to bypass authentication and gain unauthorized administrative access.

The vulnerability exists due to php external variable modification in multiple PHP scripts using extract($_REQUEST) when handling user-supplied request parameters. A remote attacker can send specially crafted GET or POST parameters to bypass authentication and gain unauthorized administrative access.

The issue affects the login handler and other protected endpoints where request parameters can overwrite local variables used in authentication or authorization logic.


Remediation

Install update from vendor's website.

References