Medium severity6.1NVD Advisory· Published Jan 16, 2026· Updated Jun 17, 2026
CVE-2026-1011
CVE-2026-1011
Description
A stored cross-site scripting (XSS) vulnerability exists in the Altium Support Center AddComment endpoint due to missing server-side input sanitization. Although the client interface applies HTML escaping, the backend accepts and stores arbitrary HTML and JavaScript supplied via modified POST requests.
The injected content is rendered verbatim when support cases are viewed by other users, including support staff with elevated privileges, allowing execution of arbitrary JavaScript in the victim’s browser context.
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Affected products
30+ 1 more
- (no CPE)range: 0
- cpe:2.3:a:altium:altium_live:*:*:*:*:*:*:*:*range: <=1.1.1.39
Patches
Vulnerability mechanics
References
1- www.altium.com/platform/security-compliance/security-advisoriesnvdVendor Advisory
News mentions
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