Auth bypass in Labredescefetrj Wegia
CVE-2026-76633
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N.
EPSS exploit prediction
EPSS: 0.004 (35.8th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 36th percentile — 35.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.004 · change: +0.002
Affected products
Weakness classification (CWE)
References
- GitHub Security Advisory (GHSA-gfcx-7973-hjmp) (vendor-advisory)
- Release Notes (release-notes)
- www.vulncheck.com/advisories/wegia-authorization-bypass-password-change-via-alt… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-76633?
- CVE-2026-76633 is a high-severity vulnerability in Labredescefetrj Wegia, classified under CWE-620. CVSS score: 8.1/10. Published 2026-08-20.
- How severe is CVE-2026-76633?
- High severity. CVSS v3 base score is 8.1 out of 10.