CVEvulnerability

CVE-2026-1009

5.4 MEDIUM Published 2026-01-15 Modified 2026-06-17 Official page ↗
Status
Analyzed
Published
2026-01-15
Last modified
2026-06-17
Assigner
4760f414-e1ae-4ff1-bdad-c7a9c3538b79
CVSS 3.1 (4760f414-e1ae-4ff1-bdad-c7a9c3538b79)
9.0 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H
CVSS 3.1 ([email protected])
5.4 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Weaknesses
CWE-284, CWE-79

Description

A stored cross-site scripting (XSS) vulnerability exists in the Altium Forum due to missing server-side input sanitization in forum post content. An authenticated attacker can inject arbitrary JavaScript into forum posts, which is stored and executed when other users view the affected post. Successful exploitation allows the attacker’s payload to execute in the context of the victim’s authenticated Altium 365 session, enabling unauthorized access to workspace data, including design files and workspace settings. Exploitation requires user interaction to view a malicious forum post.

Affected configurations

• altium altium live 1.2.2

Related

Weakness · CWE (2)

  • CWE-284 Improper Access Control weakness
  • CWE-79 Improper Neutralization of Input During Web Page Generation weakness

References