CVE-2026-55682CWE-200CWE-384information-disclosure

CVE-2026-55682

High · published October 15, 2026

CVSS v3.1
8.1
EPSS
0%
Percentile
26.5
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
8.1 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
CVSS v4.0
Not supplied
EPSS
0.00343 · 26.5th percentile
Weaknesses
CWE-200 · Exposure of Sensitive Information to an Unauthorized Actor; CWE-384 · Session Fixation
Published
2026-10-15T00:17Z
References (6)
https://github.com/LabRedesCefetRJ/WeGIA/commit/f59cad3ac7292225e88699cac82775a9f534be05 · [email protected]https://github.com/LabRedesCefetRJ/WeGIA/issues/221 · [email protected]https://github.com/LabRedesCefetRJ/WeGIA/pull/1705 · [email protected]https://github.com/LabRedesCefetRJ/WeGIA/releases/tag/3.8.6 · [email protected]https://github.com/LabRedesCefetRJ/WeGIA/security/advisories/GHSA-5xhr-jrv8-j4j2 · [email protected]https://github.com/LabRedesCefetRJ/WeGIA/security/advisories/GHSA-5xhr-jrv8-j4j2 · 134c704f-9b21-4f2e-91b3-4a467353bcc0
EPSS history
Timeline
  • 16 OCT 03:31Z
    EPSS moved — → 0%
    epss
  • 14 OCT 19:46Z
    WeGIA: Session Fixation via User-Controlled PHPSESSID Cookie + DB_HOST Leak in html/seguranca/sessionStart.php
    cvelistv5
  • 14 OCT 19:46Z
    WeGIA: Session Fixation via User-Controlled PHPSESSID Cookie + DB_HOST Leak in html/seguranca/sessionStart.php
    cvelistv5