CVE-2026-1010

CVE-2026-1010 is a high-severity vulnerability in Altium On-prem Enterprise Server with a CVSS 3.x base score of 8.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-79.

Key facts

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.

Frequently asked questions

What is 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.
How severe is CVE-2026-1010?
CVE-2026-1010 has a CVSS 3.x base score of 8.0, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-1010 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (22nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-1010?
CVE-2026-1010 affects Altium On-prem Enterprise Server. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-1010?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2026-1010 have an EU (EUVD) identifier?
Yes. CVE-2026-1010 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-3043.
When was CVE-2026-1010 published?
CVE-2026-1010 was published on 2026-01-15 and last updated on 2026-06-17.

References

Affected products (1)

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