{"cve":"CVE-2020-21987","nvd":{"published":"2021-04-27T18:15:07.773","modified":"2026-06-17T03:04:00.960","status":"Modified","description":"HomeAutomation 3.3.2 is affected by persistent Cross Site Scripting (XSS). XSS vulnerabilities occur when input passed via several parameters to several scripts is not properly sanitized before being returned to the user. This can be exploited to execute arbitrary HTML and script code in a user's browser session.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","score":6.1},"cwes":["CWE-79"],"references":["https://www.exploit-db.com/exploits/47806","https://www.zeroscience.mk/en/vulnerabilities/ZSL-2019-5556.php","https://www.exploit-db.com/exploits/47806","https://www.zeroscience.mk/en/vulnerabilities/ZSL-2019-5556.php"],"products":["homeautomation_project:homeautomation"],"source":"nvd","synced_at":"2026-10-19T21:17:01.373894544+00:00"},"epss":{"cve":"CVE-2020-21987","score":0.00905,"percentile":0.59843,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}