CVE-2026-76633: Missing Authorization in LabRedesCefetRJ WeGIA
Description
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.
CVSS v4.0
Score 8.6high
Affected software
LabRedesCefetRJ
WeGIA
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AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-76633 describes an authorization bypass vulnerability in WeGIA before version 3.9.2. The issue is due to the unconditional exclusion of the alterarSenha method from permission checks in controle/control.php. Attackers can manipulate the redir parameter to redirect to alterar_senha.php, which routes through verificarSenhaConfig() instead of verificarSenha(), bypassing current password verification. This allows any authenticated user to change their account password without providing existing credentials, potentially resulting in permanent account takeover.
Potential Impact
An attacker with any authenticated access can bypass password verification and change the account password without knowing the current password. This leads to unauthorized account takeover, compromising user accounts and potentially allowing further unauthorized actions within the affected system.
Mitigation Recommendations
A fix is available in WeGIA version 3.9.2. Users should upgrade to version 3.9.2 or later to remediate this vulnerability. Until patched, restrict access to authenticated users and monitor for suspicious password change activity.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulnCheck
- Date Reserved
- 2026-08-19T14:53:58.574Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6a8706d1acd9273b49b152c6
Added to database: 08/20/2026, 13:53:21 UTC
Last enriched: 10/02/2026, 15:54:10 UTC
Last updated: 10/04/2026, 16:16:17 UTC
Views: 65
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