XSS in Nanohttpd
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.
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.008 (53.6th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 54th percentile — 53.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: 0.000
Affected products
Weakness classification (CWE)
References
- github.com/NanoHttpd/nanohttpd (Product, Third Party Advisory)
- www.vdoo.com/advisories (Third Party Advisory)
Frequently asked questions
- What is CVE-2020-13697?
- CVE-2020-13697 is a medium-severity vulnerability in Nanohttpd, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2021-02-23.
- How severe is CVE-2020-13697?
- Medium severity. CVSS v3 base score is 6.1 out of 10.