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

Quick assessment

Affected
NeoRazorX facturascripts
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

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。

CVSS 3.9 · Low EPSS 0.15% · P4

Possible ATT&CK Techniques 1 AI

T1059 · Command and Scripting Interpreter

Affected Version Matrix 1

VendorProduct Version RangeStatus
NeoRazorX facturascripts < 2025.8 affected
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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: CVE Program / CVE List V5
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: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N
Source: CVE Program / CVE List V5
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: CVE Program / CVE List V5
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

Vendor Product Affected Versions CPE Subscribe
NeoRazorX facturascripts < 2025.8 -

II. Public POCs for CVE-2026-27964

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III. Intelligence Information for CVE-2026-27964

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Patches & Fixes for CVE-2026-27964 (1)

Vendor Advisories for CVE-2026-27964 (1)

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

CVE-2026-27891 7.2 HIGH Remote Code Execution (RCE) via Zip Slip in Plugin Upload Mechanism
CVE-2026-27892 6.5 MEDIUM FacturaScripts: 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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