Missing Authentication for Critical Function in WeGIA - #VU166195
Published: November 13, 2026
Vulnerability identifier: #VU166195
CSH Severity: Medium
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: N/A
CWE-ID: CWE-306
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to disclose the organization's full billing ledger, including payer names, charge codes, payment dates, amounts, and payment status.
The vulnerability exists due to missing authentication in WeGIA's html/socio/sistema/processa_cobrancas_tabela.php endpoint when handling billing requests. A remote attacker can send a GET or POST request without a session cookie to retrieve every charge as JSON.
Affected software
WeGIA
Remediation
Install security update from vendor's website.
WeGIA - update to 4.2.0