CVE-2026-55679 Details
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.
A vulnerability in WeGIA, a web management tool for charitable organizations, allows for command injection and arbitrary PHP code execution. This issue exists in versions prior to 3.8.6, specifically within the installation endpoint 'web/instalador/instalador.php'. The vulnerability arises because the endpoint can be accessed before the 'config.php' file is created, allowing unauthenticated POST data to be processed. In the Linux reinstallation process, a manipulated 'usuario' value is passed to a command executed by 'shell_exec()'. Additionally, the installer writes user-controlled data into the 'config.php' file and improperly constructs SQL queries by directly appending database names. Exploiting this vulnerability could lead to executing commands as the web server user, injecting persistent PHP code through 'config.php', and disrupting the application and its data.
Users can update to WeGIA version 3.8.6 or later, where this vulnerability has been fixed.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Oct 14, 2026CISA-ADP
Assessed Oct 20, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/LabRedesCefetRJ/WeGIA/security/advisories/GHSA-wm6j-4rfm-399q | CISA-ADP | AdvisoryExploitRemedyVendor |
| https://github.com/LabRedesCefetRJ/WeGIA/commit/b13c4b0b416d99a8145f583e0893bc8172155469 | [email protected] | Source CodeVendor |
| https://github.com/LabRedesCefetRJ/WeGIA/issues/96 | [email protected] | ExploitIssue TrackingTechnical DescriptionVendor |
| https://github.com/LabRedesCefetRJ/WeGIA/pull/1705 | [email protected] | Source CodeVendor |
| https://github.com/LabRedesCefetRJ/WeGIA/releases/tag/3.8.6 | [email protected] | Release NotesVendor |
| https://github.com/LabRedesCefetRJ/WeGIA/security/advisories/GHSA-wm6j-4rfm-399q | [email protected] | AdvisoryExploitRemedyVendor |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-78 | Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') | [email protected] |
| CWE-89 | Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') | [email protected] |
| CWE-94 | Improper Control of Generation of Code ('Code Injection') | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| WeGIA | <= 3.8.5 (semver) |
CPE
Remediation
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Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Oct 20, 2026 | CVE Modified | CISA-ADP |
| Oct 14, 2026 | New CVE Received | [email protected] |