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Autodesk Fusion CVE-2026-0533

HIGH
Cross-site Scripting (XSS) (CWE-79)
2026-01-22 psirt@autodesk.com
8.1
CVSS 3.1 · NVD
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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain

  1. Access
    Attacker gains design-sharing access to victim's Fusion workspace
  2. Delivery
    Create design with HTML/JS payload in name
  3. Exploit
    Share or place design in victim-visible project
  4. Execution
    Victim opens delete confirmation dialog
  5. Persist
    Victim clicks, payload executes in Fusion process
  6. Impact
    Read local files or run arbitrary code as user

Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A05:2025 - Injection
ASVS 5.0
V1 - Encoding and Sanitization Output encoding, context-aware escaping
MITRE ATT&CK

2 techniques across 2 tactics: Initial Access, Execution

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

Exploitation Conditions

Exploitation requires (1) the attacker to control the name of a Fusion design that the victim can see - typically via Fusion's cloud project/team sharing or hub collaboration features - and (2) the victim to specifically invoke the delete confirmation dialog on that design and click within it, per CVSS UI:R. Limiting factors: the payload only fires in the delete-confirm UI flow (not on simple browse, open, or preview), no elevated privileges are needed on the victim host (PR:N) but the attacker needs a shared-design path to reach the victim, and the impact is bounded to the rights of the local Fusion process user. Default Fusion installations on macOS and Windows are in scope; no special non-default configuration is required on the victim side.

Impact

The CVSS 3.1 vector AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N yields 8.1 (High): network reachable, low complexity, no privileges, but user interaction is required (the victim must open and click within the delete dialog), with high confidentiality and integrity impact and no availability impact. Counterbalancing signals lower the practical priority: EPSS is only 0.04% (11th percentile), there is no CISA KEV listing, and no public POC is identified, so this is best read as a real but currently theoretical risk that depends entirely on social-engineering a user into deleting an attacker-supplied design. The CVSS AV:N rating is plausible because Fusion designs are shared via Autodesk cloud collaboration, but defenders should note the network vector is mediated by the design-sharing workflow rather than direct service exposure - worth verifying against the vendor advisory before treating it as a remote service flaw.

Exploit ScenarioDerived

An attacker creates or renames a Fusion design so its name contains an HTML/JavaScript payload, then shares it (or causes it to appear) in a project, team hub, or collaborator workspace reachable by the victim. When the victim later right-clicks the design and opens the delete confirmation dialog, the malicious name is rendered as live HTML; clicking through fires the script in the Fusion process, enabling local file theft (e.g., SSH keys, project files) or arbitrary code execution as the user. No public exploit identified at time of analysis, but the technique is straightforward once the injection sink is known.

This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).
Patch available 0.0% exploitation probability (EPSS)

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AnalysisAIv3 – Jun 03, 2026

Stored cross-site scripting in the Autodesk Fusion desktop application allows remote attackers to embed a malicious HTML payload in a design name that executes when a user opens the delete confirmation dialog and clicks the rendered content. Successful exploitation can lead to local file disclosure or arbitrary code execution in the context of the Fusion process. No public exploit identified at time of analysis, and EPSS exploitation probability is low (0.04%, 11th percentile).

Earlier versions of this analysis (2)
v2 Jun 03, 2026 - 14:37 cvss changed CVSS 8.1

Stored cross-site scripting in the Autodesk Fusion desktop application allows a remote attacker to embed malicious HTML in a design name that executes when a victim opens the delete confirmation dialog and clicks within it. Because the rendering context is the desktop client (not a sandboxed browser), successful exploitation can read local files or achieve arbitrary code execution as the current user. No public exploit identified at time of analysis; EPSS is very low (0.04%) and the issue is not in CISA KEV.

v1 Mar 12, 2026 - 21:54 CVSS 7.1

A maliciously crafted HTML payload in a design name, when displayed during the delete confirmation dialog and clicked by a user, can trigger a Stored Cross-site Scripting (XSS) vulnerability in the Autodesk Fusion desktop application. [CVSS 7.1 HIGH]

RemediationAI

Patch available per vendor advisory: update the Autodesk Fusion desktop client to the fixed build referenced in ADSK-SA-2026-0001 (https://www.autodesk.com/trust/security-advisories/adsk-sa-2026-0001) using the official downloaders for macOS (Fusion Client Downloader.dmg) and Windows (Fusion Client Downloader.exe). Because the trigger is a delete confirmation dialog on a design name, an interim compensating control is to instruct users not to delete designs that originated from untrusted collaborators or shared team hubs and to rename suspicious designs through the project tree before invoking the delete action - note this is procedural and does not remove the underlying rendering flaw. Where feasible, restrict design sharing into Fusion Teams/Hubs to vetted accounts and remove untrusted external collaborators until all endpoints are confirmed patched, accepting the collaboration friction this introduces.

Affects your stack

Find out whether the stacks and servers you run are on an affected version.

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

The flaw is a CWE-79 Improper Neutralization of Input During Web Page Generation (Cross-site Scripting) issue in the Autodesk Fusion desktop client (cpe:2.3:a:autodesk:fusion:*). Fusion is a hybrid desktop/cloud CAD/CAM/CAE platform that renders UI elements such as dialogs using an embedded web/Chromium-style rendering layer, meaning HTML supplied as a design name is interpreted rather than escaped when shown in the delete confirmation dialog. Because the rendering context is the desktop process itself rather than a sandboxed browser tab, injected script can reach beyond the DOM to read local files and invoke native code paths, escalating a classic stored XSS into an RCE-grade primitive.

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  • Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 8.1 HIGH
AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
None

Lifecycle Timeline

3
CVSS changed
Jun 03, 2026 - 14:22 NVD
7.1 (HIGH) 8.1 (HIGH)
Patch released
Jan 30, 2026 - 17:07 nvd
Patch available
CVE Published
Jan 22, 2026 - 17:16 nvd
HIGH 7.1

DescriptionCVE.org

A maliciously crafted HTML payload in a design name, when displayed during the delete confirmation dialog and clicked by a user, can trigger a Stored Cross-site Scripting (XSS) vulnerability in the Autodesk Fusion desktop application. A malicious actor may leverage this vulnerability to read local files or execute arbitrary code in the context of the current process.

Executive ViewAI

Why It Matters

Autodesk Fusion contains a stored cross-site scripting vulnerability that allows attackers to embed malicious content in design file names, potentially enabling unauthorized file access or code execution when users open compromised designs. Organizations employing Fusion for collaborative design workflows face risks to data confidentiality and system integrity. Current public exploitation remains unlikely, but the high severity rating necessitates timely remediation.

Business Impact: High
Compensating Controls

Apply vendor patch.

Threat Intelligence Overview

EPSS Score
0.0%
Top 89% exploitable
Data Quality
3 sources
Confidence: Low

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity HIGH
CISA KEV No
Public POC No
EPSS 0.0%
Patch available Yes
Active threat No
Deciding rule
HIGH severity (CVSS 7.0-8.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Scheduled
Exploitation· derived
None
System Exposure· derived
Open
Automatable· derived
No
Human Impact
High

Priority Score

40
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +40
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Cross-Site Scripting occurs when an application accepts untrusted data and sends it to a web browser without proper validation or encoding.

Remote Code Execution represents the critical moment when an attacker successfully runs arbitrary code on a target system without physical access.

Affected Products (CPE)CVE.org

cpe:2.3:a:autodesk:fusion:*:*:*:*:*:*:*:*

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