CVE-2026-39355

critical · 9.9

Genealogy is a family tree PHP application. Prior to 5.9.1, a critical broken access control vulnerability in the genealogy application allows any authenticated user to transfer ownership of arbitrary non-personal teams to themselves. This enables complete takeover of other users’ team workspaces and unrestricted access to all genealogy data associated with the compromised team. This vulnerability is fixed in 5.9.1.

9.9

CVSS

0.3%

EPSS (exploit prob.)

25th

EPSS percentile

2026-04-07

Published

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

Weaknesses

CWE-862

Affected products

Vendor	Product	Affected versions
kreaweb	genealogy	< 5.9.1

Check a specific version with /api/v1/cve/match.

References

https://github.com/MGeurts/genealogy/security/advisories/GHSA-2rq7-jqm7-w8x4
https://github.com/MGeurts/genealogy/security/advisories/GHSA-2rq7-jqm7-w8x4

Query this programmatically:

curl https://evil-db.io/api/v1/cve/CVE-2026-39355