CVE-2025-54132 – “Cursor Mermaid Image Exfiltration Vulnerability”

The following table lists the changes that have been made to the
CVE-2025-54132 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution
of a vulnerability, and for identifying the most recent changes that may
impact the vulnerability’s severity, exploitability, or other characteristics.

  • New CVE Received
    by [email protected]

    Aug. 01, 2025

    Action Type Old Value New Value
    Added Description Cursor is a code editor built for programming with AI. In versions below 1.3, Mermaid (which is used to render diagrams) allows embedding images which then get rendered by Cursor in the chat box. An attacker can use this to exfiltrate sensitive information to a third-party attacker controlled server through an image fetch after successfully performing a prompt injection. A malicious model (or hallucination/backdoor) might also trigger this exploit at will. This issue requires prompt injection from malicious data (web, image upload, source code) in order to exploit. In that case, it can send sensitive information to an attacker-controlled external server. This is fixed in version 1.3.
    Added CVSS V3.1 AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:N
    Added CWE CWE-918
    Added Reference https://github.com/cursor/cursor/security/advisories/GHSA-43wj-mwcc-x93p
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