CVE-2026-27964: CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in NeoRazorX facturascripts
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.
AI Analysis
Technical Summary
FacturaScripts, an open source accounting and invoicing software by NeoRazorX, has a reflected XSS vulnerability (CWE-79) in versions prior to 2025.8. The vulnerability arises because the fsNick cookie parameter is inserted into the HTML DOM without sanitization or encoding. When a malicious script is injected via this cookie, it executes immediately upon page load before the server invalidates the session and forces logout. This behavior allows an attacker to run scripts in the context of the victim's browser session. The issue was addressed and fixed in version 2025.8.
Potential Impact
The vulnerability allows reflected XSS attacks that can execute arbitrary scripts in the victim's browser. This can lead to limited confidentiality and integrity impacts, such as theft of cookies or manipulation of the user interface. However, the server forces a logout upon detecting the modified session, limiting the attack's persistence and impact. The CVSS score of 3.9 reflects a low severity impact with limited confidentiality and integrity consequences and no availability impact.
Mitigation Recommendations
Upgrade FacturaScripts to version 2025.8 or later, where this vulnerability has been fixed. Since the vendor has released a fixed version, applying this official update is the recommended remediation. No other specific mitigations are indicated.
CVE-2026-27964: CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in NeoRazorX facturascripts
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.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
FacturaScripts, an open source accounting and invoicing software by NeoRazorX, has a reflected XSS vulnerability (CWE-79) in versions prior to 2025.8. The vulnerability arises because the fsNick cookie parameter is inserted into the HTML DOM without sanitization or encoding. When a malicious script is injected via this cookie, it executes immediately upon page load before the server invalidates the session and forces logout. This behavior allows an attacker to run scripts in the context of the victim's browser session. The issue was addressed and fixed in version 2025.8.
Potential Impact
The vulnerability allows reflected XSS attacks that can execute arbitrary scripts in the victim's browser. This can lead to limited confidentiality and integrity impacts, such as theft of cookies or manipulation of the user interface. However, the server forces a logout upon detecting the modified session, limiting the attack's persistence and impact. The CVSS score of 3.9 reflects a low severity impact with limited confidentiality and integrity consequences and no availability impact.
Mitigation Recommendations
Upgrade FacturaScripts to version 2025.8 or later, where this vulnerability has been fixed. Since the vendor has released a fixed version, applying this official update is the recommended remediation. No other specific mitigations are indicated.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-02-25T03:24:57.793Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a0c25c6ec166c07b08770c5
Added to database: 5/19/2026, 8:56:38 AM
Last enriched: 5/19/2026, 8:56:53 AM
Last updated: 5/20/2026, 3:21:52 PM
Views: 12
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