CVE-2026-1011

MEDIUM

6.1

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.

Details CVE

Score CVSS v3.16.1

SeveriteMEDIUM

Vecteur CVSSCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Vecteur d'attaqueNETWORK

ComplexiteLOW

Privileges requisNONE

Interaction utilisateurREQUIRED

Publie1/16/2026

Derniere modification1/23/2026

Sourcenvd

Observations honeypot0

Produits affectes

altium:altium_live

Faiblesses (CWE)

CWE-79CWE-116CWE-79

References

https://www.altium.com/platform/security-compliance/security-advisories(4760f414-e1ae-4ff1-bdad-c7a9c3538b79)

Correlations IOC

Aucune correlation enregistree

This product uses data from the NVD API but is not endorsed or certified by the NVD.