---
id: CVE-2026-76633
title: >-
  WeGIA before 3.9.2 contains an authorization bypass vulnerability in the
  password change flow that allows any authenticated user to change their
  account password without providing existing credentials by exploiting the
  unconditional excl…
summary: >-
  WeGIA before 3.9.2 contains an authorization bypass vulnerability in the
  password change flow that allows any authenticated user to change their
  account password without providing existing credentials by exploiting the
  unconditional excl…
severity: high
cvss: 8.1
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N'
cwe:
  - CWE-620
  - CWE-862
published: '2026-08-20'
updated: '2026-09-16'
sourceUpdated: '2026-09-16T13:42:43.863'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-76633'
references:
  - url: 'https://github.com/LabRedesCefetRJ/WeGIA/releases#release-3.9.2'
    label: disclosure@vulncheck.com
  - url: >-
      https://github.com/LabRedesCefetRJ/WeGIA/security/advisories/GHSA-gfcx-7973-hjmp
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/wegia-authorization-bypass-password-change-via-alterarsenha
    label: disclosure@vulncheck.com
tags:
  - nvd
epss: 0.00438
epssPercentile: 0.35357
ingestedAt: '2026-09-16T13:56:12.593Z'
---

## Overview

WeGIA before 3.9.2 contains an authorization bypass vulnerability in the password change flow that allows any authenticated user to change their account password without providing existing credentials by exploiting the unconditional exclusion of the alterarSenha method from permission checks in controle/control.php. Attackers can manipulate the redir parameter to point to alterar_senha.php, routing through verificarSenhaConfig() instead of verificarSenha() to bypass current password verification and convert temporary session access into permanent account takeover.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.