Vulnerability Description
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.
CVSS Score
CRITICAL
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Kreaweb | Genealogy | < 5.9.1 |
Related Weaknesses (CWE)
References
- https://github.com/MGeurts/genealogy/security/advisories/GHSA-2rq7-jqm7-w8x4ExploitVendor Advisory
- https://github.com/MGeurts/genealogy/security/advisories/GHSA-2rq7-jqm7-w8x4ExploitVendor Advisory
FAQ
What is CVE-2026-39355?
CVE-2026-39355 is a vulnerability with a CVSS score of 9.9 (CRITICAL). 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...
How severe is CVE-2026-39355?
CVE-2026-39355 has been rated CRITICAL with a CVSS base score of 9.9/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2026-39355?
Check the references section above for vendor advisories and patch information. Affected products include: Kreaweb Genealogy.