Cursor up to 1.3.8 Setting vscode/settings.json improper authorization

Summaryinfo

A vulnerability was found in Cursor up to 1.3.8 and classified as critical. The affected element is an unknown function of the file vscode/settings.json of the component Setting Handler. Executing a manipulation can lead to improper authorization. This vulnerability is tracked as CVE-2025-54130. The attack can be launched remotely. No exploit exists. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in Cursor up to 1.3.8. It has been declared as critical. This vulnerability affects an unknown code of the file vscode/settings.json of the component Setting Handler. The manipulation with an unknown input leads to a improper authorization vulnerability. The CWE definition for the vulnerability is CWE-285. The product does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

Cursor is a code editor built for programming with AI. Cursor allows writing in-workspace files with no user approval in versions less than 1.3.9. If the file is a dotfile, editing it requires approval but creating a new one doesn't. Hence, if sensitive editor files, such as the .vscode/settings.json file don't already exist in the workspace, an attacker can chain a indirect prompt injection vulnerability to hijack the context to write to the settings file and trigger RCE on the victim without user approval. This is fixed in version 1.3.9.

The advisory is available at github.com. This vulnerability was named CVE-2025-54130 since 07/17/2025. The exploitation appears to be difficult. The attack can be initiated remotely. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1548.002 by the MITRE ATT&CK project.

By approaching the search of inurl:vscode/settings.json it is possible to find vulnerable targets with Google Hacking.

Upgrading to version 1.3.9 eliminates this vulnerability.

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Productinfo

Name

• Cursor

Version

• 1.3.0
• 1.3.1
• 1.3.2
• 1.3.3
• 1.3.4
• 1.3.5
• 1.3.6
• 1.3.7
• 1.3.8

Website

• Product: https://github.com/cursor/cursor/

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