Metrics
Affected Vendors & Products
| Source | ID | Title | 
|---|---|---|
|  Github GHSA | GHSA-mxxr-jv3v-6pgc | FastMCP vulnerable to reflected XSS in client's callback page | 
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
Wed, 29 Oct 2025 16:15:00 +0000
| Type | Values Removed | Values Added | 
|---|---|---|
| Metrics | ssvc 
 | 
Wed, 29 Oct 2025 11:00:00 +0000
| Type | Values Removed | Values Added | 
|---|---|---|
| First Time appeared | Fastmcp Fastmcp fastmcp | |
| Vendors & Products | Fastmcp Fastmcp fastmcp | 
Tue, 28 Oct 2025 21:45:00 +0000
| Type | Values Removed | Values Added | 
|---|---|---|
| Description | FastMCP is the standard framework for building MCP applications. Versions prior to 2.13.0 have a reflected cross-site scripting vulnerability in the OAuth client callback page (oauth_callback.py) where unescaped user-controlled values are inserted into the generated HTML, allowing arbitrary JavaScript execution in the callback server origin. The issue is fixed in version 2.13.0. | |
| Title | FastMCP vulnerable to reflected XSS in client's callback page | |
| Weaknesses | CWE-79 | |
| References |  | |
| Metrics | cvssV4_0 
 | 
 MITRE
                        MITRE
                    Status: PUBLISHED
Assigner: GitHub_M
Published:
Updated: 2025-10-29T15:52:44.433Z
Reserved: 2025-10-22T18:55:48.012Z
Link: CVE-2025-62800
 Vulnrichment
                        Vulnrichment
                    Updated: 2025-10-29T15:52:31.593Z
 NVD
                        NVD
                    Status : Awaiting Analysis
Published: 2025-10-28T22:15:36.983
Modified: 2025-10-30T15:05:32.197
Link: CVE-2025-62800
 Redhat
                        Redhat
                    No data.
 OpenCVE Enrichment
                        OpenCVE Enrichment
                    Updated: 2025-10-29T10:57:40Z