FacturaScripts: Reflected Cross-Site Scripting (XSS) via Cookie Manipulation

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Summary

CVECVE-2026-27964
StatePUBLISHED
AssignerGitHub_M
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-05-18 22:16:38 UTC
Updated2026-05-18 22:16:38 UTC
DescriptionFacturaScripts 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.

Risk And Classification

Primary CVSS: v3.1 3.9 LOW from [email protected]

CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N

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

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary3.9LOWCVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N
3.1CNADECLARED3.9LOWCVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
Required
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
None

CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA NeoRazorX Facturascripts affected < 2025.8 Not specified

References

ReferenceSourceLinkTags
github.com/NeoRazorX/facturascripts/commit/9066e10326029adf012114e27eb5f... [email protected] github.com
github.com/NeoRazorX/facturascripts/security/advisories/GHSA-gq5c-rw37-g46c [email protected] github.com
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