Vulnerability · Published Aug 1, 2025 · Assigned by GitHub_M
CVE-2025-54133Cursor's MCP Install Deeplink Does Not Show Arguments in its User-Dialog
Medium 5.3
In plain English
A medium-severity OS command injection in cursor from cursor. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 38% of all known vulnerabilities).
Official description
Cursor is a code editor built for programming with AI. In versions 1.17 through 1.2, there is a UI information disclosure vulnerability in Cursor's MCP (Model Context Protocol) deeplink handler, allowing attackers to execute 2-click arbitrary system commands through social engineering attacks. When users click malicious `cursor://anysphere.cursor-deeplink/mcp/install` links, the installation dialog does not show the arguments being passed to the command being run. If a user clicks a malicious deeplink, then examines the installation dialog and clicks through, the full command including the arguments will be executed on the machine. This is fixed in version 1.3.
Affected products (as reported)
Weakness: CWE-78, CWE-200 · Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
References
- https://github.com/cursor/cursor/security/advisories/GHSA-r22h-5wp2-2wfv x_refsource_CONFIRM