Missing Authentication for Critical Function in WeGIA - #VU166197
Published: November 13, 2026
Vulnerability identifier: #VU166197
CSH Severity: High
CVSS v4: 9.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/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 steal the live BoletoFacil API token, create charges, and access payer information on behalf of the organization.
The vulnerability exists due to missing authentication in WeGIA's import_conteudo_processacontribuicao.php when handling requests to a page that embeds the provider token in inline JavaScript. A remote attacker can request the page without a session, extract token_api from the response, and use it to make unauthorized BoletoFacil API calls.
Affected software
WeGIA
Remediation
Install security update from vendor's website.
WeGIA - update to 4.2.0