CVE-2026-53711
Severity not reportedMCP Context Forge provides an MCP Admin UI for managing gateway resources.
MCP Context Forge provides an MCP Admin UI for managing gateway resources. From 0.2.0 until 0.3.1, the Global Prompts feature stores a prompt template without sufficient output encoding before the MCP Admin UI renders it. An authenticated attacker can save markup containing script-capable event handlers, and the code executes when another user views the saved prompt. The stored cross-site scripting can alter the interface, present phishing content, observe keystrokes available to the page, and act with the viewer's browser session. This issue is fixed in version 0.3.1.
Affected products
Not reported by the source (unknown — not "none").
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
No vendor advisory or patch reference tagged by NVD. Check the references below.
References
- https://github.com/IBM/mcp-context-forge/commit/acd16196158f9a393187551b21a2fc61650f2e3d security-advisories@github.com
- https://github.com/IBM/mcp-context-forge/pull/337 security-advisories@github.com
- https://github.com/IBM/mcp-context-forge/releases/tag/v0.3.1 security-advisories@github.com
- https://github.com/IBM/mcp-context-forge/security/advisories/GHSA-x6gc-rm5j-55mw security-advisories@github.com
- https://github.com/IBM/mcp-context-forge/security/advisories/GHSA-x6gc-rm5j-55mw 134c704f-9b21-4f2e-91b3-4a467353bcc0
