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

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-55679
StatePUBLISHED
AssignerGitHub_M
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-10-14 20:17:50 UTC
Updated2026-10-20 03:17:15 UTC
DescriptionWeGIA 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.

Risk And Classification

Primary CVSS: v3.1 6.5 MEDIUM from [email protected]

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:L

Problem Types: CWE-78 | CWE-89 | CWE-94 | CWE-78 CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') | CWE-89 CWE-89: Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') | CWE-94 CWE-94: Improper Control of Generation of Code ('Code Injection')

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary6.5MEDIUMCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:L
3.1CNADECLARED6.5MEDIUMCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:L

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
High
Availability
Low

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:L

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA LabRedesCefetRJ WeGIA affected < 3.8.6 Not specified

References

ReferenceSourceLinkTags
github.com/LabRedesCefetRJ/WeGIA/pull/1705 [email protected] github.com
github.com/LabRedesCefetRJ/WeGIA/issues/96 [email protected] github.com
github.com/LabRedesCefetRJ/WeGIA/security/advisories/GHSA-wm6j-4rfm-399q 134c704f-9b21-4f2e-91b3-4a467353bcc0 github.com
github.com/LabRedesCefetRJ/WeGIA/commit/b13c4b0b416d99a8145f583e0893bc81... [email protected] github.com
github.com/LabRedesCefetRJ/WeGIA/releases/tag/3.8.6 [email protected] github.com
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