XSS in Altium Enterprise Server
CVE-2026-1010
A stored cross-site scripting (XSS) vulnerability exists in the Altium Workflow Engine due to missing server-side input sanitization in workflow form submission APIs. A regular authenticated user can inject arbitrary JavaScript into workflow data. When an administrator views the affected workflow, the injected payload executes in the administrator’s browser context, allowing privilege escalation, including creation of new administrator accounts, session token theft, and execution of administrative actions.
Vulnerability class: XSS (Cross-Site Scripting)
EPSS: 0.003 (27.5th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.0 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H.
Affected products
- Altium Enterprise Server — versions 0
- Altium On-prem_enterprise_server — versions 8.0.1
Weakness classification (CWE)
Public proof-of-concept exploits
References
- 4760f414-e1ae-4ff1-bdad-c7a9c3538b79 (Vendor Advisory)
Frequently asked questions
- What is CVE-2026-1010?
- CVE-2026-1010 is a high-severity vulnerability in Altium Enterprise Server, classified under Cross-site Scripting. CVSS score: 8.0/10. Published 2026-01-15.
- How severe is CVE-2026-1010?
- High severity. CVSS v3 base score is 8.0 out of 10.
- Is CVE-2026-1010 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.