Cross-site scripting in FacturaScripts - #VU163128
Published: November 9, 2026
Vulnerability identifier: #VU163128
CSH Severity: Low
CVSS v4: 5.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N]
CVE-ID: N/A
CWE-ID: CWE-79
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a low-privileged authenticated attacker to execute arbitrary JavaScript in another user's session, including an administrator's session.
The vulnerability exists due to incorrect JavaScript-context escaping of uploaded file names in the FacturaScripts file-library widget's inline click handler. A low-privileged authenticated attacker can upload a file with a crafted name using file-attachment permissions and trigger stored cross-site scripting when a victim clicks the affected file in the widget.
Affected software
FacturaScripts
Remediation
Install security update from vendor's website.
FacturaScripts - update to 2026.7