CVE-2026-27964: FacturaScripts vulnerable to Reflected Cross-Site Scripting (XSS) via Cookie Manipulation

May 7, 2026 (updated May 19, 2026)

A Reflected Cross-Site Scripting (XSS) vulnerability exists in the fsNick cookie parameter. The application reflects the cookie’s value directly into the HTML without sanitization.

References

github.com/NeoRazorX/facturascripts/commit/9066e10326029adf012114e27eb5f3f33f78ecfd
github.com/NeoRazorX/facturascripts/security/advisories/GHSA-gq5c-rw37-g46c
github.com/advisories/GHSA-gq5c-rw37-g46c
nvd.nist.gov/vuln/detail/CVE-2026-27964

Code Behaviors & Features

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