Description
esm.sh is a nobuild content delivery network(CDN) for modern web development. Prior to version 136, The esm.sh CDN service contains a Template Literal Injection vulnerability (CWE-94) in its CSS-to-JavaScript module conversion feature. When a CSS file is requested with the ?module query parameter, esm.sh converts it to a JavaScript module by embedding the CSS content directly into a template literal without proper sanitization. An attacker can inject malicious JavaScript code using ${...} expressions within CSS files, which will execute when the module is imported by victim applications. This enables Cross-Site Scripting (XSS) in browsers and Remote Code Execution (RCE) in Electron applications. This issue has been patched in version 136.
INFO
Published Date :
2025-11-19T17:33:11.469Z
Last Modified :
2025-11-20T14:19:17.852Z
Source :
GitHub_M
AFFECTED PRODUCTS
The following products are affected by CVE-2025-65026 vulnerability.
| Vendors | Products |
|---|---|
| Esm |
|
| Esm-dev |
|
REFERENCES
Here, you will find a curated list of external links that provide in-depth information to CVE-2025-65026.
