CVE-2026-73037

MEDIUM 6.1

Next AI Draw.io 0.2.1 - 0.4.16 Reflected XSS via unsanitized mcp query parameter

CVSS Score

6.1

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-79
Vendor	dayuanjiang
Product	next-ai-draw-io
Published	Aug 13, 2026
Last Updated	Aug 13, 2026

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CVSS v3 Breakdown

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

Affected Versions

DayuanJiang / next-ai-draw-io

0.2.1 ≤ 0.4.16

References

NVD ↗ CVE.org ↗ EPSS Data ↗

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

Credits

HK4zCzi (Ho Viet Khanh)