Stored XSS in Altium AES 7.0.3 BOM Viewer Allows Script Injection

Publication date: 2026-01-22

Last updated on: 2026-02-26

Assigner: Altium

Description

A stored cross-site scripting (XSS) vulnerability in the BOM Viewer in Altium AES 7.0.3 allows an authenticated attacker to inject arbitrary JavaScript into the Description field of a schematic, which is executed when the BOM Viewer renders the affected content.

CVSS Scores

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Meta Information

Published

2026-01-22

Last Modified

2026-02-26

Generated

2026-07-06

AI Q&A

2026-01-22

EPSS Evaluated

2026-07-05

NVD

CVE-2025-27379

EUVD

EUVD-2026-4172

Affected Vendors & Products

Vendor	Product	Version / Range
altium	on-prem_enterprise_server	From 7.0.3 (inc) to 7.0.6 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-79	The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

Attack-Flow Graph

Executive Summary

This vulnerability is a stored cross-site scripting (XSS) issue in the BOM Viewer component of Altium AES 7.0.3. An authenticated attacker can inject arbitrary JavaScript code into the Description field of a schematic. When the BOM Viewer renders this content, the malicious script executes.

Impact Analysis

The vulnerability can allow an attacker to execute arbitrary JavaScript in the context of the BOM Viewer application. This can lead to information disclosure, manipulation of data, or denial of service, potentially impacting the integrity and availability of the system.

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