Broken Access Control in Genealogy Application by MGeurts
CVE-2026-39355

10CRITICAL

Key Information:

Vendor

Mgeurts

Status
Genealogy
Vendor
CVE Published:
7 April 2026

What is CVE-2026-39355?

A broken access control vulnerability in the Genealogy PHP application, prior to version 5.9.1, allows authenticated users to unlawfully transfer ownership of arbitrary non-personal teams. This breach provides the potential for unauthorized access, enabling attackers to take over workspaces of other users and manipulate all associated genealogy data.

Affected Version(s)

genealogy < 5.9.1

References

https://github.com/MGeurts/genealogy/security/advisories/...
x_refsource_CONFIRM

CVSS V3.1

Score:
10
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.