High 8.1Published Oct 14, 2026

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

Updated under an hour ago (2026-10-19 06:10 UTC)

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It affects LabRedesCefetRJ WeGIA. Add what you run to find out whether that includes you.

EPSS puts the chance of exploitation in the next 30 days at 0.34%, higher than 26% of scored CVEs.

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Every CVE for LabRedesCefetRJ WeGIA

Exploited in the last 30 days

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.

CVSS: 8.1 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
Weakness (CWE): CWE-200, CWE-384
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): 0.34% (percentile 26)
Assigned by: GitHub_M
NVD analysis: Deferred
Record last updated: Oct 15, 2026
First seen by InfoSec Signals: Oct 14, 2026

Affected products

Affected products

LabRedesCefetRJ WeGIA labredescefetrj:wegia (from the name)	before 3.8.6	CNA record

References

https://github.com/LabRedesCefetRJ/WeGIA/security/advisories/GHSA-5xhr-jrv8-j4j2x-refsource-confirm
https://github.com/LabRedesCefetRJ/WeGIA/issues/221x-refsource-misc
https://github.com/LabRedesCefetRJ/WeGIA/pull/1705x-refsource-misc
https://github.com/LabRedesCefetRJ/WeGIA/commit/f59cad3ac7292225e88699cac82775a9f534be05x-refsource-misc
https://github.com/LabRedesCefetRJ/WeGIA/releases/tag/3.8.6x-refsource-misc

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.