CVE-2025-58444 describes a cross-site scripting (XSS) vulnerability in the MCP Inspector local development tool, affecting versions prior to 0.16.6. This flaw allows an attacker to trigger arbitrary command execution by connecting to a malicious remote MCP server with a specially crafted redirect URI. Rated with a CVSS score of 8.6 (HIGH), this vulnerability has a network attack vector, low attack complexity, and high impact on confidentiality, integrity, and availability. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion, indicating a low current threat landscape.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
| Modelcontextprotocol | Inspector | < 0.16.6CNA affected |
CVSS version used by this source: 4.0
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.1 Security Researcher mentions.