Missing Authorization in WeGIA - #VU166190
Published: November 13, 2026
Vulnerability identifier: #VU166190
CSH Severity: Medium
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N]
CVE-ID: N/A
CWE-ID: CWE-862
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to overwrite donors' personal information, recurring donation amounts, and tag associations without authorization.
The vulnerability exists due to missing authorization in WeGIA's SocioController::atualizarSocio when the publicly accessible route processes donor updates keyed solely by CPF without verifying record ownership. A remote attacker can solve one reCAPTCHA and submit a POST request containing a target donor's CPF in documento_socio and replacement field values to modify that donor's records.
Affected software
WeGIA
Remediation
Install security update from vendor's website.
WeGIA - update to 4.2.0