CVE-2026-1008

Stored Cross-Site Scripting in Altium Live User Profile Fields

State: Published
Severity: 7.6 High
Published: Jan 15, 2026
Updated: Jan 19, 2026
Reserved: Jan 15, 2026

Description

A stored cross-site scripting (XSS) vulnerability exists in the user profile text fields of Altium 365. Insufficient server-side input sanitization allows authenticated users to inject arbitrary HTML and JavaScript payloads using whitespace-based attribute parsing bypass techniques. The injected payload is persisted and executed when other users view the affected profile page, potentially allowing session token theft, phishing attacks, or malicious redirects. Exploitation requires an authenticated account and user interaction to view the crafted profile.

Scores

CVSS	Score	Vector	Source
3.1	7.6 High	CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:N	Altium

Weaknesses

CWE-79 Improper Neutralization of Input During Web Page Generation (Cross-site Scripting)

Affected Products

Product	Versions
Altium LiveAltium	1.2.2 and earlierAffectedfrom 1.2.3Not affected

References

https://www.altium.com/platform/security-compliance/security-advisories

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