CVE-2025-54136
HIGHCursor < 1.3 - Remote Code Execution via MCP Configuration File Tampering
Title source: llmExploitation Summary
EIP tracks 2 public exploits for CVE-2025-54136. PoCs published by adminlove520, PRE5T0.
AI-analyzed exploit summary The repository contains functional exploit code for multiple CVEs, including authentication bypass vulnerabilities in TOTOLINK devices and a scanner for Fortinet SSL VPN (CVE-2024-21762). The PoCs demonstrate the vulnerabilities with clear technical details and functional code.
Description
Cursor is a code editor built for programming with AI. In versions 1.2.4 and below, attackers can achieve remote and persistent code execution by modifying an already trusted MCP configuration file inside a shared GitHub repository or editing the file locally on the target's machine. Once a collaborator accepts a harmless MCP, the attacker can silently swap it for a malicious command (e.g., calc.exe) without triggering any warning or re-prompt. If an attacker has write permissions on a user's active branches of a source repository that contains existing MCP servers the user has previously approved, or allows an attacker has arbitrary file-write locally, the attacker can achieve arbitrary code execution. This is fixed in version 1.3.
Exploits (2)
The repository contains functional exploit code for multiple CVEs, including authentication bypass vulnerabilities in TOTOLINK devices and a scanner for Fortinet SSL VPN (CVE-2024-21762). The PoCs demonstrate the vulnerabilities with clear technical details and functional code.
References (1)
Scores
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H