CVE-2026-1009 is a stored cross-site scripting (XSS) vulnerability in the Altium Forum, affecting Altium Live products. An authenticated attacker can inject malicious JavaScript into forum posts due to insufficient server-side input sanitization. When other users view these compromised posts, the script executes, potentially leading to unauthorized access to the victim's Altium 365 session and workspace data. This vulnerability has a CVSS score of 5.4 (Medium), indicating a network-based attack with low privileges required, but user interaction is necessary to trigger the exploit. The potential impact includes limited confidentiality and integrity compromise. Currently, there is no evidence of active exploitation, nor are there public exploit modules available in Metasploit or Nuclei. While it has garnered some community discussion, its EPSS score is very low, suggesting a minimal probability of exploitation.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
>= 0, <= 1.2.2CPE match | cpe:2.3:a:altium:altium_live:*:*:*:*:*:*:*:* | ||
1.2.2CPE matchmatch criteria | cpe:2.3:a:altium:altium_live:1.2.2:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.