What is CVE-2026-42877?

CVE-2026-42877 is a medium-severity vulnerability in Neorazorx Facturascripts, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2026-05-27.

How severe is CVE-2026-42877?

Medium severity. CVSS v3 base score is 5.4 out of 10.

XSS in Neorazorx Facturascripts

CVE-2026-42877

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…

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.000 (8.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.

Affected products

Neorazorx Facturascripts — versions <= 2025.92

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

security-advisories@github.com (x_refsource_CONFIRM)

Frequently asked questions

What is CVE-2026-42877?: CVE-2026-42877 is a medium-severity vulnerability in Neorazorx Facturascripts, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2026-05-27.
How severe is CVE-2026-42877?: Medium severity. CVSS v3 base score is 5.4 out of 10.