Cursor up to 1.2 Mermaid server-side request forgery

CVSS Meta Temp Score
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CTI Interest Score
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4.7$0-$5k0.00

Summaryinfo

A vulnerability marked as critical has been reported in Cursor up to 1.2. Affected is an unknown function of the component Mermaid. The manipulation leads to server-side request forgery. This vulnerability is documented as CVE-2025-54132. The attack can be initiated remotely. There is not any exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in Cursor up to 1.2. It has been rated as problematic. This issue affects an unknown code of the component Mermaid. The manipulation with an unknown input leads to a server-side request forgery vulnerability. Using CWE to declare the problem leads to CWE-918. The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination. Impacted is confidentiality. The summary by CVE is:

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.

The advisory is shared at github.com. The identification of this vulnerability is CVE-2025-54132 since 07/17/2025. The exploitation is known to be difficult. The attack may be initiated remotely. The exploitation needs additional levels of successful authentication. Neither technical details nor an exploit are publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 270700 (Security Updates for Microsoft Visual Studio Products 17.14.17 (October 2025)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 1.3 eliminates this vulnerability.

The vulnerability is also documented in the databases at Tenable (270700), EUVD (EUVD-2025-23407) and CERT Bund (WID-SEC-2025-2278). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Affected

  • Microsoft PowerShell
  • Red Hat Enterprise Linux
  • Ubuntu Linux
  • Oracle Linux
  • Microsoft ASP.NET
  • RESF Rocky Linux
  • Microsoft Windows Server 2012
  • Microsoft .NET Framework
  • Microsoft Windows Server 2012 R2
  • Microsoft Windows Server 2016
  • Microsoft Windows Server 2019
  • Microsoft Windows Server 2022
  • Microsoft Windows
  • Microsoft Visual Studio 2017
  • Microsoft Visual Studio 2019
  • Microsoft Visual Studio 2022
  • Octopus Deploy Octopus Deploy

Productinfo

Name

Version

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.7
VulDB Meta Temp Score: 4.7

VulDB Base Score: 2.2
VulDB Temp Score: 2.1
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔒

CNA Base Score: 4.4
CNA Vector (GitHub_M): 🔒

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Server-side request forgery
CWE: CWE-918
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

Nessus ID: 270700
Nessus Name: Security Updates for Microsoft Visual Studio Products 17.14.17 (October 2025)

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Cursor 1.3

Timelineinfo

07/17/2025 CVE reserved
08/02/2025 +16 days Advisory disclosed
08/02/2025 +0 days VulDB entry created
11/11/2025 +101 days VulDB entry last update

Sourcesinfo

Product: github.com

Advisory: GHSA-43wj-mwcc-x93p
Status: Confirmed

CVE: CVE-2025-54132 (🔒)
GCVE (CVE): GCVE-0-2025-54132
GCVE (VulDB): GCVE-100-318581
EUVD: 🔒
CERT Bund: WID-SEC-2025-2278 - Microsoft Developer Tools: Mehrere Schwachstellen

Entryinfo

Created: 08/02/2025 08:37
Updated: 11/11/2025 09:57
Changes: 08/02/2025 08:37 (64), 08/02/2025 15:07 (1), 08/05/2025 02:44 (1), 08/25/2025 09:01 (11), 10/18/2025 07:29 (2), 11/11/2025 09:57 (7)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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