CVE-2026-15750 in mastergo-magic-mcp
Summary
by MITRE • 07/15/2026
A weakness has been identified in mastergo-design mastergo-magic-mcp up to 0.2.0. Impacted is the function z.string of the file src/tools/get-component-link.ts of the component mcp__getComponentLink. Executing a manipulation of the argument url can lead to server-side request forgery. The attack may be performed from remote. The exploit has been made available to the public and could be used for attacks. The project was informed of the problem early through an issue report but has not responded yet.
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Analysis
by VulDB Data Team • 07/15/2026
The vulnerability identified in mastergo-design mastergo-magic-mcp version 0.2.0 represents a critical server-side request forgery (SSRF) flaw that emerges from improper input validation within the z.string function implementation. This weakness resides in the src/tools/get-component-link.ts file where the mcp__getComponentLink component processes URL arguments without adequate sanitization or validation mechanisms. The SSRF vulnerability allows remote attackers to manipulate the url parameter and potentially force the application to make unintended requests to internal systems or external malicious endpoints.
The technical flaw stems from insufficient validation of user-supplied input within the string parsing function, creating an environment where attacker-controlled data can be directly processed without proper security checks. This type of vulnerability falls under CWE-918, which specifically addresses server-side request forgery vulnerabilities that enable attackers to manipulate the target of a request. The vulnerability's classification aligns with ATT&CK technique T1071.004, which covers application layer protocol manipulation, and T1566, which encompasses spearphishing attacks leveraging malicious links.
The operational impact of this vulnerability is severe as it enables remote code execution capabilities and internal network reconnaissance. Attackers can leverage the SSRF flaw to access internal services that should normally be isolated from external networks, potentially leading to data breaches, privilege escalation, or further exploitation of the internal infrastructure. The public availability of exploit code significantly increases the risk surface as malicious actors can readily deploy attacks without requiring advanced technical skills.
Organizations utilizing this component must implement immediate mitigation strategies including input validation, URL sanitization, and network segmentation controls. The recommended approach involves implementing strict validation rules that reject suspicious URL patterns and employing proxy configurations that prevent connections to internal resources. Additionally, the project maintainers should be urgently contacted to address this vulnerability through proper patching or code modification. Security monitoring should be enhanced to detect anomalous request patterns that may indicate exploitation attempts, while access controls should be strengthened to limit potential damage from successful attacks. The vulnerability demonstrates the critical importance of input validation in web applications and highlights how seemingly simple parsing functions can create significant security risks when not properly secured against malicious manipulation.