This is a summary of the AI-generated 10-question deep analysis. The full version (longer answers, follow-up Q&A, related CVEs) requires login.
Read the full analysis โ
Q1What is this vulnerability? (Essence + Consequences)
๐จ **Essence**: Stored XSS in Altium 365 Forum. ๐ฅ **Consequences**: Malicious scripts execute in victim's browser. Leads to session hijacking, data theft, or defacement. ๐ **Impact**: High (CVSS H).
Q2Root Cause? (CWE/Flaw)
๐ก๏ธ **Root Cause**: CWE-79 (Stored XSS). ๐ **Flaw**: Lack of server-side input sanitization. โ ๏ธ **Mechanism**: Untrusted forum posts are rendered without cleaning dangerous HTML/JS tags.
Q3Who is affected? (Versions/Components)
๐ข **Vendor**: Altium. ๐ฆ **Product**: Altium 365 / Altium Live. ๐ **Affected**: Versions prior to the fix released around Jan 15, 2026. ๐ **Scope**: Users accessing the Forum feature.
Q4What can hackers do? (Privileges/Data)
๐ป **Actions**: Execute arbitrary JavaScript. ๐ **Privileges**: Steal cookies, impersonate users, redirect victims. ๐ **Data**: Access sensitive project data visible to the logged-in user.โฆ
๐ **Auth Required**: Yes (PR:L). ๐ค **User Interaction**: Yes (UI:R). ๐ **Threshold**: Medium. Attacker must post malicious content; victim must view it. Not fully remote/unauthenticated.
Q6Is there a public Exp? (PoC/Wild Exploitation)
๐ซ **Public Exp**: No PoCs listed in data. ๐ **Wild Exp**: Unconfirmed. โ ๏ธ **Risk**: Low immediate threat, but high potential if discovered.
Q7How to self-check? (Features/Scanning)
๐ **Check**: Inspect Altium 365 Forum source code. ๐งช **Test**: Submit test XSS payload (e.g., `<script>alert(1)</script>`). ๐ **Verify**: Check if script executes in other users' browsers.โฆ