CVE-2020-13697

An issue was discovered in RouterNanoHTTPD.java in NanoHTTPD through 2.3.1. The GeneralHandler class implements a basic GET handler that prints debug information as an HTML page. Any web server that extends this class without implementing its own GET handler is vulnerable to reflected XSS, because the GeneralHandler GET handler prints user input passed through the query string without any sanitization.

• CWE-79

• https://github.com/NanoHttpd/nanohttpdProduct, Third Party Advisory
• https://www.vdoo.com/advisoriesThird Party Advisory
• https://github.com/NanoHttpd/nanohttpdProduct, Third Party Advisory
• https://www.vdoo.com/advisoriesThird Party Advisory

Published

Feb 23, 2021

Last Modified

Jun 17, 2026

Status

Modified

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