CVE-2026-73037Next AI Draw.io 0.2.1 - 0.4.16 Reflected XSS via unsanitized mcp query parameter
Updated under an hour ago ()
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It affects DayuanJiang next-ai-draw-io. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- 6.1 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
- Weakness (CWE)
- CWE-79
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- VulnCheck
- NVD analysis
- Deferred
- Record last updated
- Aug 14, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
DayuanJiang next-ai-draw-io dayuanjiang:next_ai_draw_io (from the name) | from 0.2.1 through 0.4.16 | CNA record |
References
- https://github.com/DayuanJiang/next-ai-draw-io/issues/917technical-description, exploit, issue-tracking
- https://www.vulncheck.com/advisories/next-ai-draw-io-reflected-xss-via-unsanitized-mcp-query-parameterthird-party-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.