{"id":"CVE-2019-15827","url":"https://www.cyber-defence.io/tools/cve/CVE-2019-15827","generatedAt":"2026-10-28T20:28:17.845Z","title":"The onesignal-free-web-push-notifications plugin before 1.17.8 for WordPress has XSS via the subdomain parameter.","description":"The onesignal-free-web-push-notifications plugin before 1.17.8 for WordPress has XSS via the subdomain parameter.","published":"2019-08-30T14:15:11.000Z","lastModified":"2026-06-17T02:21:09.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"3.0","score":5.4,"severity":"MEDIUM","vector":"CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N"},"cwe":["CWE-79"],"affected":["onesignal/onesignal-free-web-push-notifications"],"epss":{"score":0.01063,"percentile":0.64468,"date":"2026-10-27","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (1.06%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"https://wordpress.org/plugins/onesignal-free-web-push-notifications/#developers","tags":["Product","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://wpvulndb.com/vulnerabilities/9478","tags":["Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://www.zeroscience.mk/en/vulnerabilities/ZSL-2019-5530.php","tags":["Exploit","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://wordpress.org/plugins/onesignal-free-web-push-notifications/#developers","tags":["Product","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://wpvulndb.com/vulnerabilities/9478","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.zeroscience.mk/en/vulnerabilities/ZSL-2019-5530.php","tags":["Exploit","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2019-15827","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}