CVE-2025-11953 Scanner

React Native Community CLI is widely used by developers to streamline the React Native application development process. It plays a crucial role in enhancing the productivity of developers by offering a variety of tools and utilities. The CLI is generally utilized in environments where developers are actively engaged in building and testing React Native apps, making it a critical component within development teams. It is predominantly used on developer workstations and integrates with other tools and services to provide a comprehensive development environment. Developers rely on React Native Community CLI for tasks such as bundling, running, and testing React Native applications. It helps create efficient workflows, easing the burden of complex development processes and providing support throughout the application lifecycle.

OS Command Injection, a severe vulnerability, allows attackers to execute arbitrary commands on the operating system via a vulnerable application. This particular vulnerability arises when unverified input is passed directly to the command shell. It can lead to full control of the application server or developer's machine when exploited. The React Native Community CLI is susceptible due to improper validation of URL values passed to the open() helper. Unauthenticated attackers can exploit this to launch arbitrary executables, severely compromising any source code and credentials within affected environments. This vulnerability reflects a critical security flaw where external input is inadequately sanitized.

The vulnerability details indicate that the React Native Community CLI exposes an unauthenticated /open-url endpoint. This endpoint improperly handles attacker-supplied URL values, leading to command execution. Vulnerable systems particularly on Windows, relay requests through cmd, allowing for shell command input. The lack of URL scheme validation permits attackers to utilize this flaw for executing arbitrary shell commands. This unauthorized action is achieved without authentication due to the bundler port's default configuration, posing significant risk. To mitigate the issue, updates and reconfiguration are necessary to restrict and validate input properly at the network interface.

Potential effects of exploiting this vulnerability include unauthorized execution of arbitrary programs, leading to severe ramifications such as unauthorized access to developer's sensitive data. The attack could progressively affect the integrity of development environments by exposing them to further malicious activities. Source codes and credentials stored within development machines are susceptible to theft or manipulation, posing a high risk to the application's security and privacy. Successful exploitation could lead to full system compromise, data breaches, and unauthorized escalation of privileges by malicious entities. The resultant impact is devastating as it affects the core development lifecycle, potentially harming the final application and trustworthiness.

REFERENCES

• https://jfrog.com/blog/cve-2025-11953-critical-react-native-community-cli-vulnerability/
• https://www.vulncheck.com/blog/metro4shell_eitw
• https://github.com/advisories/GHSA-399j-vxmf-hjvr
• https://github.com/react-native-community/cli/commit/15089907d1f1301b22c72d7f68846a2ef20df547
• https://nvd.nist.gov/vuln/detail/CVE-2025-11953