What is the CVSS score of CVE-2026-2680?

CVE-2026-2680 has a CVSS 3.1 base score of 6.1 (Medium). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N. EPSS exploitation probability: 0.0%.

Which versions of A3factura are affected by CVE-2026-2680?

CVE-2026-2680 presents moderate security risk, a cross-site scripting vulnerability rated CVSS 6.1. Attackers could inject scripts to steal sessions or perform actions as authenticated users.

How to fix or mitigate CVE-2026-2680?

Within 30 days: Identify affected systems and apply vendor patches as part of regular patch cycle. Verify Content-Security-Policy and output encoding.

A3factura CVE-2026-2680

MEDIUM

Cross-site Scripting (XSS) (CWE-79)

2026-02-26 cve-coordination@incibe.es

XSS A3factura

6.1

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

6.1 MEDIUM

AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

Lifecycle Timeline

Analysis Generated

Mar 12, 2026 - 21:55 vuln.today

CVE Published

Feb 26, 2026 - 13:16 nvd

MEDIUM 6.1

DescriptionCVE.org

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

AnalysisAI

A3factura's sales delivery notes endpoint is vulnerable to reflected XSS through the customerVATNumber parameter, enabling attackers to execute arbitrary JavaScript in users' browsers via malicious links. The vulnerability requires user interaction and affects the confidentiality and integrity of victim sessions, with no patch currently available. The attack has low complexity and can impact multiple users if the vulnerable parameter is exploited in phishing or watering hole scenarios.

Technical ContextAI

Classified as CWE-79 (Cross-site Scripting (XSS)). Affects A3Factura. Reflected Cross-Site Scripting (XSS) on the A3factura web platform, in parameter 'customerVATNumber', in 'a3factura-app.wolterskluwer.es/#/incomes/salesDeliveryNotes' endpoint, which could allow an attacker to execute arbitrary code in the victim's browser.

RemediationAI

Monitor vendor advisories for a patch. Implement output encoding and Content Security Policy headers. Restrict network access to the affected service where possible.