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CVE-2025-54132— Cursor's Mermaid Diagram Tool is Vulnerable to an Arbitrary Image Fetch

Quick assessment

Affected
cursor cursor
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Cursor是Cursor开源的一个 AI 代码编辑器。 Cursor 1.3之前版本存在代码问题漏洞，该漏洞源于Mermaid允许嵌入图像，可能导致敏感信息泄露。

CVSS 4.4 · Medium EPSS 0.34% · P27
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I. Basic Information for CVE-2025-54132

Vulnerability Information
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Vulnerability Title
Cursor's Mermaid Diagram Tool is Vulnerable to an Arbitrary Image Fetch
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
服务端请求伪造(SSRF)
Source: CVE Program / CVE List V5
Vulnerability Title
Cursor 代码问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Cursor是Cursor开源的一个 AI 代码编辑器。 Cursor 1.3之前版本存在代码问题漏洞，该漏洞源于Mermaid允许嵌入图像，可能导致敏感信息泄露。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
cursor cursor < 1.3 -

II. Public POCs for CVE-2025-54132

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III. Intelligence Information for CVE-2025-54132

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Same Patch Batch · cursor · 2025-08-01 · 4 CVEs total

CVE-2025-54136 7.2 HIGH Cursor's Modification of MCP Server Definitions Bypasses Manual Re-approvals
CVE-2025-54131 6.4 MEDIUM Cursor bypasses its allow list to execute arbitrary commands
CVE-2025-54133 Cursor's MCP Install Deeplink Does Not Show Arguments in its User-Dialog

IV. Related Vulnerabilities

Same product: cursor
Same vendor: cursor
Same weakness: CWE-918

V. Comments for CVE-2025-54132

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