What is CVE-2026-28409?

CVE-2026-28409 is a critical-severity vulnerability in Labredescefetrj Wegia, classified under OS Command Injection. CVSS score: 10.0/10. Published 2026-02-27.

How severe is CVE-2026-28409?

Critical severity. CVSS v3 base score is 10.0 out of 10.

RCE in Labredescefetrj Wegia

CVE-2026-28409

WeGIA is a web manager for charitable institutions. Prior to version 3.6.5, a critical Remote Code Execution (RCE) vulnerability exists in the WeGIA application's database restoration functionality. An attacker with administrative access (which can be obtained via the previously reported Authentication Bypass) can execute arbitrary OS commands on the server by uploading a backup file with a specifically crafted filename. Version 3.6.5 fixes the issue.

Vulnerability class: Command Injection (OS Command Injection)

Published 2026-02-27 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 10.0 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.039 (90.3th percentile), scored 2026-10-23.

Low probability of exploitation in the next 30 days, but still tracked. 90th percentile — 90.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.033 · newest: 0.039 · change: +0.006

Affected products

Labredescefetrj Wegia — versions < 3.6.5
Wegia

Weakness classification (CWE)

CWE-78 — OS Command Injection

References

github.com/LabRedesCefetRJ/WeGIA/security/advisories/GHSA-5m5g-q2vv-rv3r (Exploit, Vendor Advisory)

Frequently asked questions

What is CVE-2026-28409?: CVE-2026-28409 is a critical-severity vulnerability in Labredescefetrj Wegia, classified under OS Command Injection. CVSS score: 10.0/10. Published 2026-02-27.
How severe is CVE-2026-28409?: Critical severity. CVSS v3 base score is 10.0 out of 10.