What is the CVSS score of EUVD-2026-12870?

EUVD-2026-12870 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%.

N A EUVD-2026-12870

| CVE-2026-30695 MEDIUM

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

2026-03-18 mitre

XSS N A

6.1

CVSS 3.1 · Vendor: mitre

Severity by source

Vendor (mitre) PRIMARY

6.1 MEDIUM

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

Primary rating from Vendor (mitre) · only source for this CVE.

CVSS VectorVendor: mitre

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

CVSS changed

Apr 27, 2026 - 19:22 NVD

6.1 (MEDIUM)

EUVD ID Assigned

Mar 18, 2026 - 17:15 euvd

EUVD-2026-12870

Analysis Generated

Mar 18, 2026 - 17:15 vuln.today

CVE Published

Mar 18, 2026 - 00:00 nvd

N/A

DescriptionCVE.org

A Cross-Site Scripting (XSS) vulnerability exists in the web-based configuration interface of Zucchetti Axess access control devices, including XA4, X3/X3BIO, X4, X7, and XIO / i-door / i-door+. The vulnerability is caused by improper sanitization of user-supplied input in the dirBrowse parameter of the /file_manager.cgi endpoint.

AnalysisAI

A Cross-Site Scripting (XSS) vulnerability exists in the web-based configuration interface of Zucchetti Axess physical access control devices across multiple product lines (XA4, X3/X3BIO, X4, X7, and XIO/i-door/i-door+). The vulnerability stems from improper sanitization of the dirBrowse parameter in the /file_manager.cgi endpoint, allowing attackers to inject malicious scripts that execute in the context of authenticated administrators. A public proof-of-concept has been disclosed on GitHub (https://github.com/iremnurylmz/CVE-2026-30695), and given the lack of CVSS/EPSS scoring data and KEV status confirmation, the true exploitation likelihood remains uncertain but the presence of a POC elevates practical risk.

Technical ContextAI

The vulnerability resides in the web-based management interface of Zucchetti Axess access control systems, which are embedded web applications running on dedicated hardware devices used for physical security. The root cause is a CWE-79 (Improper Neutralization of Input During Web Page Generation, also known as Cross-Site Scripting) flaw in the /file_manager.cgi endpoint, specifically in how the dirBrowse parameter is processed without adequate input validation or output encoding. Attackers can exploit this by crafting malicious URLs or form submissions containing JavaScript payloads that, when processed by the application, are reflected back to the user's browser without sanitization. This class of vulnerability is particularly dangerous in access control systems because administrative interfaces typically have elevated privileges, making XSS payloads capable of modifying user credentials, extracting audit logs, or reconfiguring access policies.

RemediationAI

Immediately contact Zucchetti for patch availability and upgrade guidance; check http://zucchetti.com and http://firmware.com for firmware updates applicable to your specific device model and version. Until patches are applied, implement compensating controls: restrict web-based management interface access to trusted administrator IP ranges using network-level access controls; require HTTPS with HSTS headers to prevent protocol downgrade; disable or limit the /file_manager.cgi endpoint if not actively used; enable administrative account lockout policies; and conduct security awareness training to reduce the likelihood that administrators will click on malicious links. Monitor access logs for suspicious dirBrowse parameter values containing script tags or encoded JavaScript.