CVE-2025-54132
"Cursor Mermaid Image Exfiltration 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.
INFO
Published Date :
Aug. 1, 2025, 11:15 p.m.
Last Modified :
Aug. 25, 2025, 1:48 a.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | MEDIUM | [email protected] | ||||
| CVSS 3.1 | HIGH | [email protected] |
Solution
- Update Cursor to version 1.3 or later.
- Ensure all dependencies are updated.
- Sanitize all user-supplied image data.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2025-54132.
| URL | Resource |
|---|---|
| https://github.com/cursor/cursor/security/advisories/GHSA-43wj-mwcc-x93p | Vendor Advisory |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2025-54132 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2025-54132
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2025-54132 vulnerability anywhere in the article.
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.
-
Initial Analysis by [email protected]
Aug. 25, 2025
Action Type Old Value New Value Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N Added CWE NVD-CWE-noinfo Added CPE Configuration OR *cpe:2.3:a:anysphere:cursor:*:*:*:*:*:*:*:* versions up to (excluding) 1.3 Added Reference Type GitHub, Inc.: https://github.com/cursor/cursor/security/advisories/GHSA-43wj-mwcc-x93p Types: Vendor Advisory -
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