CVE-2026-1010 Stored Cross-Site Scripting in Altium Enterprise Server Workflow Engine Allows Privilege Escalation
Stored XSS in Altium Workflow Engine allows authenticated users to escalate privileges by injecting scripts executed in admin browsers.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-1010?
CVE-2026-1010 is a high-severity cross-site scripting vulnerability in Altium Enterprise Server, published on 15 Jan 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official description
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.
Which versions are affected by CVE-2026-1010?
It affects 1 product.
Products include Altium On-Prem Enterprise Server.
How do I fix CVE-2026-1010?
No fix has been published for CVE-2026-1010 yet. Limit exposure of the affected software until one is available.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2026-1010 being exploited?
There is no known exploitation of CVE-2026-1010 in the wild and no public exploit code.
Public exploit code: 1 proofs of concept on GitHub.
Other vulnerabilities in Altium Enterprise Server
- CVE-2026-11414 Hardcoded credentials in Altium Enterprise Server
- CVE-2026-11420 Path Traversal in Altium Enterprise Server NIS Allows Unauthenticated Arbitrary File Write and File Read
- CVE-2026-11419 Path Traversal in Altium Enterprise Server Vault UploadController Allows Arbitrary File Write
- CVE-2025-27378 SQL Injection in AES Due to Inactive SQL Parsing Configuration
- CVE-2025-27380 HTML Injection Leading to Script Execution in Altium Enterprise Server
Sources
Also known as GHSA-7wc5-cm44-jmh9.