What is CVE-2026-2677?

CVE-2026-2677 is a medium-severity vulnerability in A3factura, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2026-02-26.

How severe is CVE-2026-2677?

Medium severity. CVSS v3 base score is 6.1 out of 10.

XSS in A3factura

CVE-2026-2677

Reflected Cross-Site Scripting (XSS) on the A3factura web platform, in parameter 'name', in 'a3factura-app.wolterskluwer.es/#/incomes/representatives-management' endpoint, which could allow an attacker to execute arbitrary code in the victim's browser.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.002 (6.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

Affected products

A3factura — versions 4.111.2-rev.1
Wolterskluwer A3factura — versions 4.111.2

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

cve-coordination@incibe.es (Third Party Advisory, patch)

Frequently asked questions

What is CVE-2026-2677?: CVE-2026-2677 is a medium-severity vulnerability in A3factura, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2026-02-26.
How severe is CVE-2026-2677?: Medium severity. CVSS v3 base score is 6.1 out of 10.