CVE-2025-54130Network attack vector

Code execution via unapproved sensitive-file creation

Published Aug 5, 2025 · Updated Aug 5, 2025

Improper authorization in Cursor before 1.3.9 allows attackers to execute host code through indirect prompt injection. The Agent's file-write guard requires approval to edit an existing dotfile but permits creating a missing .vscode/settings.json, allowing injected settings to change the default shell. Exploitation requires a separate indirect prompt injection that hijacks an active chat context; successful chaining runs code on the host without approval.

CVSS severity7.5
High
EPSS probability0.30%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper authorization in Cursor before 1.3.9 allows attackers to execute host code through indirect prompt injection. The Agent's file-write guard requires approval to edit an existing dotfile but permits creating a missing .vscode/settings.json, allowing injected settings to change the default shell. Exploitation requires a separate indirect prompt injection that hijacks an active chat context; successful chaining runs code on the host without approval.

The record

CVE
CVE-2025-54130
Published
Aug 5, 2025
Updated
Aug 5, 2025
Vendor
Anysphere
Product
Cursor
Classifications
CWE-285, T1203
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 5, 2025CVE publishedPublication date reported by the CVE source.
  2. Aug 5, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 1.3.9

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Anysphere · Cursorversion=< 1.3.9

Published CVSS scores

7.5GitHubCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-285Improper Authorization
T1203Exploitation for Client Execution

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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