CVE-2026-76633 WeGIA < 3.9.2 Authorization Bypass Password Change via alterarSenha
Authenticated users can bypass password verification to permanently take over accounts by manipulating routing parameters in WeGIA.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-76633?
CVE-2026-76633 is a high-severity authentication bypass vulnerability in LabRedesCefetRJ WeGIA, published on 20 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official 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.
Which versions are affected by CVE-2026-76633?
How do I fix CVE-2026-76633?
No fix has been published for CVE-2026-76633 yet. Limit exposure of the affected software until one is available.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2026-76633 being exploited?
There is no known exploitation of CVE-2026-76633 in the wild and no public exploit code.
Sources
Also known as GHSA-8248-cv95-x854, GHSA-gfcx-7973-hjmp.