{"id":"CVE-2017-15878","url":"https://www.cyber-defence.io/tools/cve/CVE-2017-15878","generatedAt":"2026-10-28T22:20:57.094Z","title":"A cross-site scripting (XSS) vulnerability exists in fields/types/markdown/MarkdownType.js in KeystoneJS before 4.0.0-beta.7 via the Contact Us feature.","description":"A cross-site scripting (XSS) vulnerability exists in fields/types/markdown/MarkdownType.js in KeystoneJS before 4.0.0-beta.7 via the Contact Us feature.","published":"2017-10-24T21:29:01.000Z","lastModified":"2026-06-17T01:08:25.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"3.0","score":6.1,"severity":"MEDIUM","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"},"cwe":["CWE-79"],"affected":["keystonejs/keystone"],"epss":{"score":0.03415,"percentile":0.88824,"date":"2026-10-27","history":[]},"kev":{"listed":false},"exploits":{"count":1,"verified":false,"firstPublished":"2017-10-25","source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[{"edbId":43054,"kind":"exploit","title":"KeystoneJS 4.0.0-beta.5 - Cross-Site Scripting","url":"https://www.exploit-db.com/exploits/43054","sourceUrl":"https://gitlab.com/exploit-database/exploitdb/-/blob/main/exploits/nodejs/webapps/43054.txt","file":"exploits/nodejs/webapps/43054.txt","published":"2017-10-25","added":"2017-10-25","updated":"2017-10-25","author":"Ishaq Mohammed","type":"webapps","platform":"nodejs","port":null,"verified":false,"codes":["CVE-2017-15878"],"tags":null,"aliases":null,"applicationUrl":null,"screenshotUrl":null,"referenceUrl":null}]},"verdict":{"level":"high","text":"A public exploit is published in Exploit-DB, so the technical barrier is gone even though the severity is medium and EPSS is 3.4%. Treat it as high on anything reachable from the internet."},"changes":[],"references":[{"url":"http://blog.securelayer7.net/keystonejs-open-source-penetration-testing-report/","tags":["Issue Tracking","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"http://www.securityfocus.com/bid/101541","tags":["Third Party Advisory","VDB Entry"],"source":"cve@mitre.org"},{"url":"https://github.com/keystonejs/keystone/pull/4478","tags":["Issue Tracking","Patch","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://packetstormsecurity.com/files/144756/KeystoneJS-4.0.0-beta.5-Unauthenticated-Stored-Cross-Site-Scripting.html","tags":["Exploit","Issue Tracking","Patch","Third Party Advisory","VDB Entry"],"source":"cve@mitre.org"},{"url":"https://www.exploit-db.com/exploits/43054/","tags":["Exploit","Issue Tracking","Patch","Third Party Advisory","VDB Entry"],"source":"cve@mitre.org"},{"url":"http://blog.securelayer7.net/keystonejs-open-source-penetration-testing-report/","tags":["Issue Tracking","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securityfocus.com/bid/101541","tags":["Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://github.com/keystonejs/keystone/pull/4478","tags":["Issue Tracking","Patch","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://packetstormsecurity.com/files/144756/KeystoneJS-4.0.0-beta.5-Unauthenticated-Stored-Cross-Site-Scripting.html","tags":["Exploit","Issue Tracking","Patch","Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.exploit-db.com/exploits/43054/","tags":["Exploit","Issue Tracking","Patch","Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2017-15878","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."}