CVE-2026-50758
Stored/reflected XSS in next-ai-draw-io 0.4.13 via mcp parameter allowing script execution.
Is CVE-2026-50758 being exploited?
Not confirmed. CVE-2026-50758 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 0.72% probability of exploitation in the next 30 days.
How severe is CVE-2026-50758?
CVE-2026-50758 is rated High with a CVSS score of 8.1. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2026-50758?
Not known from our data. No patch reference has been recorded for CVE-2026-50758, which is not the same as no patch existing — a fix may have shipped without a tagged reference, or after this record was written. The vendor advisory is the only authority on whether a fix exists, and mitigations may be available regardless.
What does CVE-2026-50758 affect?
CVE-2026-50758 affects DayuanJiang next-ai-draw-io 0.4.13, next-ai-draw-io <= 0.4.13. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-50758?
Apply input validation/escape mcp, add WAF rule, restrict access and update when vendor patch is released.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Attacker can execute JavaScript in victim browsers via mcp parameter, enabling session theft, account takeover, CSRF and further client-side attacks.
Patch when possible