CVE-2026-76633

high

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.

References

https://www.vulncheck.com/advisories/wegia-authorization-bypass-password-change-via-alterarsenha

https://github.com/LabRedesCefetRJ/WeGIA/security/advisories/GHSA-gfcx-7973-hjmp

https://github.com/LabRedesCefetRJ/WeGIA/releases#release-3.9.2

https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-63351

Details

Source: Mitre, NVD

Published: 2026-08-20

Updated: 2026-09-16

Risk Information

CVSS v2

Base Score: 8.5

Vector: CVSS2#AV:N/AC:L/Au:S/C:C/I:C/A:N

Severity: High

CVSS v3

Base Score: 8.1

Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

Severity: High

CVSS v4

Base Score: 8.6

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N

Severity: High

EPSS

EPSS: 0.00438