Medium severity · published May 27, 2026
CVE-2026-42877
FacturaScripts: Stored XSS via product reference in sales/purchases
5.4
CVSS
0.2%
EPSS
No
On KEV
Description
FacturaScripts is an open source accounting and invoicing software. In 2025.92 and earlier, a stored Cross-Site Scripting (XSS) vulnerability exists in the product search modal of sales (Core/Lib/AjaxForms/SalesModalHTML.php) and purchases documents (Core/Lib/AjaxForms/PurchasesModalHTML.php). An authenticated user with access to the warehouse module can create a product with a malicious reference that executes arbitrary JavaScript in the browser of any other user who opens the product search modal inside an invoice, order, or delivery note.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
Required
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 9% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
FA
facturascripts · NeoRazorX
<= 2025.92 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-42877
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-42877
github.com
https://github.com/NeoRazorX/facturascripts/security/advisories/GHSA-r736-2678-fcrx
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