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

CVSS 3.9 · Low EPSS 0.02% · P5

Possible ATT&CK Techniques 1AI

T1059 · Command and Scripting Interpreter

Affected Version Matrix 1

VendorProductVersion RangeStatus
NeoRazorXfacturascripts< 2025.8affected
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I. Basic Information for CVE-2026-27964

Vulnerability Information
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Vulnerability Title
FacturaScripts: Reflected Cross-Site Scripting (XSS) via Cookie Manipulation
Source: NVD (National Vulnerability Database)
Vulnerability Description
FacturaScripts is an open source accounting and invoicing software. Versions 2025.7 and prior contain a Reflected Cross-Site Scripting (XSS) vulnerability through the fsNick cookie parameter. The application reflects the cookie's value directly into the HTML without sanitization. The fsNick cookie is rendered into the DOM without encoding. While the server does reject the modified session and forces a logout, the HTML containing the payload reaches the browser first. This lets the script execute immediately upon load, effectively beating the redirect. This issue has been fixed in version 2025.8.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
Source: NVD (National Vulnerability Database)
Vulnerability Title
FacturaScripts 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
FacturaScripts是西班牙Carlos Garcia个人开发者的一个开源 ERP 软件。 FacturaScripts 2025.7及之前版本存在跨站脚本漏洞，该漏洞源于fsNick cookie参数值未清理直接反射到HTML中，可能导致反射型跨站脚本攻击。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

VendorProductAffected VersionsCPESubscribe
NeoRazorXfacturascripts < 2025.8 -

II. Public POCs for CVE-2026-27964

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III. Intelligence Information for CVE-2026-27964

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Same Patch Batch · NeoRazorX · 2026-05-18 · 3 CVEs total

CVE-2026-278917.2 HIGHRemote Code Execution (RCE) via Zip Slip in Plugin Upload Mechanism
CVE-2026-278926.5 MEDIUMFacturaScripts: Unstripped Image Metadata (EXIF) Leakage via Library Module File Upload/Do

IV. Related Vulnerabilities

Same product: facturascripts
Same vendor: NeoRazorX
Same weakness: CWE-79

V. Comments for CVE-2026-27964

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