{"cve":"CVE-2019-25027","nvd":{"published":"2021-04-23T16:15:07.987","modified":"2026-06-17T02:31:30.477","status":"Modified","description":"Missing output sanitization in default RouteNotFoundError view in com.vaadin:flow-server versions 1.0.0 through 1.0.10 (Vaadin 10.0.0 through 10.0.13), and 1.1.0 through 1.4.2 (Vaadin 11.0.0 through 13.0.5) allows attacker to execute malicious JavaScript via crafted URL","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","CWE-81"],"references":["https://github.com/vaadin/flow/pull/5498","https://vaadin.com/security/cve-2019-25027","https://github.com/vaadin/flow/pull/5498","https://vaadin.com/security/cve-2019-25027"],"products":["vaadin:flow","vaadin:vaadin"],"source":"nvd","synced_at":"2026-10-19T21:17:01.373894544+00:00"},"epss":{"cve":"CVE-2019-25027","score":0.00668,"percentile":0.51924,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-rp4x-wxqv-cf9m","url":"https://osv.dev/vulnerability/GHSA-rp4x-wxqv-cf9m","summary":"Reflected cross-site scripting in default RouteNotFoundError view in Vaadin 10 and 11-13","modified":"2023-11-08T04:01:32.550903Z","packages":[{"ecosystem":"Maven","name":"com.vaadin:flow-server","purl":"pkg:maven/com.vaadin/flow-server","ranges":[">=1.0.0 <1.0.11"],"fixed":["1.0.11"]},{"ecosystem":"Maven","name":"com.vaadin:flow-server","purl":"pkg:maven/com.vaadin/flow-server","ranges":[">=1.1.0 <1.4.3"],"fixed":["1.4.3"]}]}],"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."]}