Stored Cross-Site Scripting in Altium Enterprise Server Workflow Engine Allows Privilege Escalation
Published Jan 15, 2026
8.0
HIGHCVSS 3.1
EPSS 0.34%
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.
Affected products
-
- Version 0StatusaffectedConstraints<=8.0.1
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Altium | Altium Enterprise Server | unaffected |
|
- 8.0.1
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
1 other source (CVE.org) ▾
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
No CVSS v3.0 score for this CVE.
No CVSS v2.0 score for this CVE.
This CVE is not in the KEV list.
CISA SSVC (Vulnrichment)
Stakeholder-Specific Vulnerability Categorization from CISA ADP.
Exploitation
NoneAutomatable
NoTechnical Impact
TotalDecision
n/aAssessed Jan 16, 2026 · SSVC 2.0.3
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 3, 2026.
Score over time
Jan–Oct 2026- EPSS v4
- EPSS v5
Percentile over time
- EPSS v4
- EPSS v5
Table of values (3 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 3, 2026 | 0.34% (0.00342) | 25.46th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.30% (0.00303) | 21.68th | v5 (v2026.06.15) |
| Jan 16, 2026 | 0.04% (0.00043) | 13.15th | v4 (v2025.03.14) |
References (1)
| Link | Providers | Tags |
|---|---|---|
| https://www.altium.com/platform/security-compliance/security-advisories | Vendor Advisory |
Change history (0)
No recorded changes yet.