CVE-2025-58444
HIGHDescription
The MCP inspector is a developer tool for testing and debugging MCP servers. A cross-site scripting issue was reported in versions of the MCP Inspector local development tool prior to 0.16.6 when connecting to untrusted remote MCP servers with a malicious redirect URI. This could be leveraged to interact directly with the inspector proxy to trigger arbitrary command execution. Users are advised to update to 0.16.6 to resolve this issue.
How to fix
No published remediation has been found for this vulnerability's affected products yet.
Mitigation guidance may be in the linked vendor advisories in the References section below.
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CVSS v4 Vector
Exploitability
Impact
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
Exploit Intelligence
Moderate risk: more likely to be exploited than 50% of all known CVEs.
References
Related Vulnerabilities
Other CWE-84 vulnerabilities, ordered by exploit likelihood. View all
| CVE | Severity | CVSS | EPSS | Exploited | Fix |
|---|---|---|---|---|---|
| CVE-2020-7011 | Medium | 6.1 | 1.0% | - | Fix |
| CVE-2022-40181 | High | 8.3 | 0.9% | - | Fix |
| CVE-2021-3824 | Medium | 6.1 | 0.7% | - | - |
| CVE-2023-25571 | Medium | 6.8 | 0.5% | - | Fix |
| CVE-2026-54443 | Medium | 5.9 | 0.4% | - | - |
| CVE-2026-88859 | Medium | 6.3 | 0.3% | - | - |
Common questions
How do I fix CVE-2025-58444?
No published fix for CVE-2025-58444 has been found yet. Check the linked vendor advisories for guidance as it becomes available.
Is CVE-2025-58444 being actively exploited?
Not that we know of. CVE-2025-58444 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 0.67% is the estimated probability that it will be exploited in the next 30 days. That is higher than 50% of all scored CVEs.
How severe is CVE-2025-58444?
CVE-2025-58444 has a CVSS v4 base score of 8.6, rated high. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.
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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-06-17.