Paper/Archive/CVE-2025-54133

CVE-2025-54133

cursor cursor — Cursor's MCP Install Deeplink Does Not Show Arguments in its User-Dialog

CVSS 9.6 (NVD)9.6 / 10 × 3028.8 Not in CISA KEV+300.0 EPSS percentile 35.0.350 × 207.0 No public exploit+100.0 SSVC exploitation: none+100.0

Description · from the CVE record

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

ProductAffectedFixed inSource

cursor>= 1.17, < 1.3–CNA

Scores by source

NVD9.6CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

GitHub_M (CNA)5.3CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N

CISA ADPSSVCExploitation: none · Automatable: no · Technical impact: partial

References

refgithub.com/cursor/cursor/security/advisories/GHSA-r22h-5wp2-2wfv