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Vulnerability · Published Oct 14, 2026 · Assigned by GitHub_M

CVE-2026-55679WeGIA: Pre-auth Installer Injection Chain Enables Command Execution and Arbitrary PHP Code Injection

Medium 6.5

In plain English

A medium-severity OS command injection in WeGIA from LabRedesCefetRJ. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 44% of all known vulnerabilities).

Severity (CVSS 3.1)6.5Medium
Exploit odds (30 days)0.5%top 55.6% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known

Official description

WeGIA is a web manager for charitable institutions. Prior to 3.8.6, the pre-installation web/instalador/instalador.php endpoint is reachable before config.php exists and processes unauthenticated installation POST data. In the Linux reinstall flow, a crafted usuario value reaches a command executed by shell_exec(). The installer also writes attacker-controlled values into executable config.php and concatenates the database name nomebd into a CREATE DATABASE statement. Successful exploitation can execute commands as the web-server user, persist attacker-controlled PHP configuration, and alter or disrupt the application and its data. This issue is fixed in version 3.8.6.

Affected products (as reported)

VendorProductVersions
LabRedesCefetRJ WeGIA < 3.8.6

Weakness: CWE-78, CWE-89, CWE-94 · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:L

References