What is CVE-2025-27379?

CVE-2025-27379 is a medium-severity vulnerability in Altium Aes, classified under Cross-site Scripting. CVSS score: 6.8/10. Published 2026-01-22.

How severe is CVE-2025-27379?

Medium severity. CVSS v3 base score is 6.8 out of 10.

XSS in Altium Aes

CVE-2025-27379

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 render…

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.002 (10.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.8 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:H.

Affected products

Altium Aes — versions 7.0.3
Altium On-prem_enterprise_server

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

4760f414-e1ae-4ff1-bdad-c7a9c3538b79 (Vendor Advisory)

Frequently asked questions

What is CVE-2025-27379?: CVE-2025-27379 is a medium-severity vulnerability in Altium Aes, classified under Cross-site Scripting. CVSS score: 6.8/10. Published 2026-01-22.
How severe is CVE-2025-27379?: Medium severity. CVSS v3 base score is 6.8 out of 10.