CVE-2026-27964
published 2026-05-18CVE-2026-27964: FacturaScripts is an open source accounting and invoicing software. Versions 2025.7 and prior contain a Reflected Cross-Site Scripting (XSS) vulnerability…
PriorityP413low3.9CVSS 3.1
AVLACLPRLUIRSUCLILAN
EPSS
0.10%
1.3th percentile
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.
Affected
2 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| facturascripts | facturascripts | 0 – 2025.71 | — |
| neorazorx | facturascripts | < 2025.8 | 2025.8 |
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VulDB
NeoRazorX facturascripts up to 2025.7 cross site scripting (GHSA-gq5c-rw37-g46c)
vuldb·2026-05-19·CVSS 3.9
CVE-2026-27964 [LOW] NeoRazorX facturascripts up to 2025.7 cross site scripting (GHSA-gq5c-rw37-g46c)
A vulnerability classified as problematic has been found in NeoRazorX facturascripts up to 2025.7. Affected is an unknown function. The manipulation leads to cross site scripting.
This vulnerability is uniquely identified as CVE-2026-27964. The attack is possible to be carried out remotely. No exploit exists.
It is recommended to upgrade the affected component.
GHSA
FacturaScripts vulnerable to Reflected Cross-Site Scripting (XSS) via Cookie Manipulation
ghsa·2026-05-07
CVE-2026-27964 [LOW] CWE-79 FacturaScripts vulnerable to Reflected Cross-Site Scripting (XSS) via Cookie Manipulation
FacturaScripts vulnerable to Reflected Cross-Site Scripting (XSS) via Cookie Manipulation
### Summary
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.
### Details
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.
### PoC
1. Log in to the application with any valid account.
2. Capture any the GET request .
3. Modify the value of "fsNick" with the following JavaScript:
`alert(window.origin)`
4. Send the modified request.
5. Resu
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2026-05-18
Published