SB20261109200 - Cross-site scripting in FacturaScripts

CSH
CYBERSECURITY HELP
Sign In REGISTER

Main Vulnerability Database SB20261109200

SB20261109200 - Cross-site scripting in FacturaScripts

Published: November 9, 2026

Security Bulletin ID SB20261109200
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Local access
Highest impact Data manipulation

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Cross-site scripting (CVE-ID: CVE-2026-27964)

CWE-ID: CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

CVSSv4: 4.6 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N]


The vulnerability allows a local authenticated attacker to execute JavaScript in the application's origin through reflected cross-site scripting in FacturaScripts.

The vulnerability exists due to missing HTML encoding when FacturaScripts reflects the fsNick cookie value into a page returned for a GET request. A local authenticated attacker can modify this cookie after logging in with any valid account and have the returned page loaded, causing script execution before the application forces a logout.


Remediation

Install update from vendor's website.

References