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CVE-2026-55682— WeGIA: Session Fixation via User-Controlled PHPSESSID Cookie + DB_HOST Leak in html/seguranca/sessionStart.php

Quick assessment

Affected
LabRedesCefetRJ WeGIA
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

WeGIA is a web manager for charitable institutions. Prior to 3.8.6, the auto-prepended web/html/seguranca/sessionStart.php reflects an attacker-supplied PHPSESSID cookie in a Set-Cookie response and uses DB_HOST as the cookie domain. If a victim authenticates

CVSS 8.1 · High
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I. Basic Information for CVE-2026-55682

Vulnerability Information

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Vulnerability Title
WeGIA: Session Fixation via User-Controlled PHPSESSID Cookie + DB_HOST Leak in html/seguranca/sessionStart.php
Source: CVE Program / CVE List V5
Vulnerability Description
WeGIA is a web manager for charitable institutions. Prior to 3.8.6, the auto-prepended web/html/seguranca/sessionStart.php reflects an attacker-supplied PHPSESSID cookie in a Set-Cookie response and uses DB_HOST as the cookie domain. If a victim authenticates while using the attacker-selected identifier, the attacker can reuse that identifier to hijack the authenticated session. The response also discloses the internal database host name through the cookie Domain attribute, and the vulnerable session handler affects all PHP pages. This issue is fixed in version 3.8.6.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
信息暴露
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
LabRedesCefetRJ WeGIA < 3.8.6 -

II. Public POCs for CVE-2026-55682

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III. Intelligence Information for CVE-2026-55682

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Patches & Fixes for CVE-2026-55682 (2)

Other References for CVE-2026-55682 (3)

Same Patch Batch · LabRedesCefetRJ · 2026-10-14 · 6 CVEs total

CVE-2026-55683 9.8 CRITICAL WeGIA: SQL Injection in html/socio/sistema/cadastro_cobranca.php
CVE-2026-55684 9.8 CRITICAL WeGIA: SQL Injection in html/socio/sistema/cadastro_cobrancas_geracao.php
CVE-2026-55680 9.8 CRITICAL WeGIA: Unauthenticated SQL Injection in cadastro_cobranca.php via "codigo" parameter
CVE-2026-55681 8.8 HIGH WeGIA: SQL Injection in html/matPat/restaurar_produto_desocultar.php via id_produto parame
CVE-2026-55679 6.5 MEDIUM WeGIA: Pre-auth Installer Injection Chain Enables Command Execution and Arbitrary PHP Code

IV. Related Vulnerabilities

Same product: WeGIA
Same vendor: LabRedesCefetRJ
Same weakness: CWE-200

V. Comments for CVE-2026-55682

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