CVE-2026-55682

HIGH 8.1

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

CVSS Score

8.1

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-200 CWE-384
Vendor	labredescefetrj
Product	wegia
Published	Oct 14, 2026

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CVSS v3 Breakdown

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

None

Affected Versions

LabRedesCefetRJ / WeGIA

< 3.8.6

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/LabRedesCefetRJ/WeGIA/security/advisories/GHSA-5xhr-jrv8-j4j2 github.com: https://github.com/LabRedesCefetRJ/WeGIA/issues/221 github.com: https://github.com/LabRedesCefetRJ/WeGIA/pull/1705 github.com: https://github.com/LabRedesCefetRJ/WeGIA/commit/f59cad3ac7292225e88699cac82775a9f534be05 github.com: https://github.com/LabRedesCefetRJ/WeGIA/releases/tag/3.8.6