Deserialization of Untrusted Data in FacturaScripts - CVE-2026-104905
Published: November 9, 2026 / Updated: November 10, 2026
Vulnerability identifier: #VU163116
CSH Severity: Medium
CVSS v4: 7.2 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-104905
CWE-ID: CWE-502
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows an authenticated attacker to delete arbitrary files writable by the web-server user in FacturaScripts.
The vulnerability exists due to unrestricted deserialization of submitted values in WidgetSelect when an accessible edit form contains an editable select field configured with multiple="true". An authenticated attacker can submit a serialized object as the field value and save the form to trigger deletion of attacker-selected files.
Affected software
FacturaScripts
How to mitigate CVE-2026-104905
Install security update from vendor's website.
FacturaScripts - update to 2026.7