Next AI Draw.io 0.2.1 through 0.4.16 contains a reflected cross-site scripting vulnerability in the mcp query parameter that is interpolated without escaping into HTML and JavaScript. Attackers can craft malicious URLs to execute arbitrary JavaScript in the localhost origin, enabling exfiltration of diagram sessions and API data.

Attack Vector Network

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction Active

Vulnerable System Confidentiality Impact None

Vulnerable System Integrity Impact None

Vulnerable System Availability Impact None

Subsequent System Confidentiality Impact Low

Subsequent System Integrity Impact Low

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Changed

Confidentiality Impact Low

Integrity Impact Low

Availability Impact None

User Interaction Required

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00155.

Exploitation none

Automatable yes

Technical Impact partial

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
DayuanJiang next-ai-draw-io affected
Version Status Constraints
0.2.1 affected ≤ 0.4.16

No data.

No data.

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Vendors Products
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Next-ai-draw-io Subscribe

Project Subscriptions

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Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://github.com/DayuanJiang/next-ai-draw-io/issues/917 cve-icon cve-icon
https://www.vulncheck.com/advisories/next-ai-draw-io-reflected-xss-via-unsanitized-mcp-query-parameter cve-icon cve-icon
History

Fri, 14 Aug 2026 20:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Fri, 14 Aug 2026 17:15:00 +0000

Type Values Removed Values Added
First Time appeared Dayuanjiang next Ai Draw.io
CPEs cpe:2.3:a:dayuanjiang:next_ai_draw.io:*:*:*:*:*:*:*:*
Vendors & Products Dayuanjiang next Ai Draw.io

Thu, 13 Aug 2026 20:15:00 +0000

Type Values Removed Values Added
First Time appeared Dayuanjiang
Dayuanjiang next-ai-draw-io
Vendors & Products Dayuanjiang
Dayuanjiang next-ai-draw-io

Thu, 13 Aug 2026 18:30:00 +0000

Type Values Removed Values Added
Description Next AI Draw.io 0.2.1 through 0.4.16 contains a reflected cross-site scripting vulnerability in the mcp query parameter that is interpolated without escaping into HTML and JavaScript. Attackers can craft malicious URLs to execute arbitrary JavaScript in the localhost origin, enabling exfiltration of diagram sessions and API data.
Title Next AI Draw.io 0.2.1 - 0.4.16 Reflected XSS via unsanitized mcp query parameter
Weaknesses CWE-79
References
Metrics cvssV3_1

{'score': 6.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N'}

cvssV4_0

{'score': 5.1, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-08-14T19:45:25.604Z

Reserved: 2026-08-10T18:48:59.023Z

Link: CVE-2026-73037

cve-icon Vulnrichment

Updated: 2026-08-14T18:30:23.737Z

cve-icon NVD

Status : Deferred

Published: 2026-08-13T19:17:33.960

Modified: 2026-09-09T20:35:08.537

Link: CVE-2026-73037

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-13T20:00:03Z

Weaknesses