LiveActive security incident?Get immediate response
CVE Record

CVE-2026-1010: Stored Cross-Site Scripting in Altium Enterprise Server Workflow Engine Allows Privilege Escalation

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.

HighCVSS 8Not KEV-listedUpdated
Glexia's TakeAutomated analysishigh

Security readout for executives and security teams

Plain-English summary

CVE-2026-1010 is a stored XSS issue in Altium Enterprise Server’s Workflow Engine. An authenticated regular user could save malicious script in workflow data. If an administrator later views that workflow, the script may run with administrator browser privileges, enabling account or session compromise. Public data does not clearly identify affected versions or a specific fixed release.

Executive priority

Treat as high priority if Altium Enterprise Server workflows are used internally or by broad authenticated populations. The main concern is administrator compromise after routine workflow review. Because patch details are not included in the provided sources, prioritize vendor confirmation and compensating access controls.

Technical view

The CVE describes missing server-side input sanitization in workflow form submission APIs. The issue is classified as CWE-79 and CWE-269 with CVSS 3.1 score 8.0. Attack prerequisites are network access, low privileges, and administrator interaction. Reported impacts include administrative actions, session token theft, and creation of administrator accounts.

Likely exposure

Exposure is likely limited to organizations running Altium Enterprise Server with the Workflow Engine enabled and accessible to authenticated users. The source bundle’s affected-version data is incomplete or ambiguous, listing version “0” with default status “unaffected,” so asset owners should verify directly against Altium’s advisory.

Exploitation context

No provided source states active exploitation, and the CVE is not marked KEV. Exploitation requires an authenticated user to submit malicious workflow data and an administrator to view the affected workflow. The business risk is privilege escalation from a regular account to administrator-level control.

Researcher notes

The public record describes impact clearly but lacks precise affected-version and remediation details. Avoid assuming all Enterprise Server versions are affected. Focus validation on workflow form submission handling, stored content rendering, privilege boundaries, and evidence of administrative session misuse, without performing intrusive exploit attempts.

Mitigation direction

  • Review Altium’s security advisories for affected versions and fixed releases.
  • Restrict Workflow Engine access to trusted authenticated users where feasible.
  • Limit administrator review of untrusted workflow submissions until vendor guidance is confirmed.
  • Monitor for unexpected administrator account creation or administrative workflow actions.
  • Apply vendor-provided updates or mitigations when identified by Altium.

Validation and detection

  • Inventory Altium Enterprise Server deployments and Workflow Engine usage.
  • Compare installed versions against Altium’s published advisory details.
  • Review logs for unusual workflow submissions by low-privilege users.
  • Check for newly created or unexpected administrator accounts.
  • Confirm administrative users have not accessed suspicious workflow items.
Prepared
Confidence
medium
Sources
3

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

cwe · medium confidence lookup

CWE-269: Authorization and privilege behavior lookup

Authorization weaknesses can support privilege escalation and valid-account review, depending on exploit path. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.

Open ATT&CK lookup
cwe · medium confidence lookup

CWE-79: User-session and phishing behavior lookup

Client-side and session-facing weaknesses should be reviewed alongside initial-access and user-execution behaviors. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.

Open ATT&CK lookup
description · low confidence lookup

Credential and access behavior lookup

The CVE wording references authentication or credential exposure, so valid-account and credential-access review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.

Open ATT&CK lookup
description · low confidence lookup

Privilege behavior lookup

The CVE wording references privilege impact, so privilege escalation and authorization behavior review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.

Open ATT&CK lookup
cve · low confidence lookup

CVE-2026-1010 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

Open ATT&CK lookup
Vulnerability profileCVE Program record
Severity
High
CVSS
8 (3.1)
Known Exploited
No
Published

Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

1CVSS vectors
0Timeline events
0ADP providers
2Source links

CVSS vector scores

1 official score

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

ScoreVersionSeverityVectorExploitImpactSource
8CVSS 3.1HighCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H2.15.9Primary CVE score

Vulnerability scoring details

Base CVSS 3.1 score

8High
CVSS 3.1 vector shape for CVE-2026-1010Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone
Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
AltiumAltium Enterprise Server0unaffected
Weakness

CWE details

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.