{"id":"CVE-2017-15878","aliases":["EUVD-2017-0346","GHSA-7qcx-jmrc-h2rr"],"status":"published","title":"Cross-Site Scripting in keystone","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.","severity":{"version":"3.0","score":6.1,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.03415,"percentile":0.88972,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":true,"fix_available":true},"cwes":["CWE-79"],"published":"2017-10-24T21:00:00Z","modified":"2026-10-20T10:48:14Z","exploits":[{"source":"exploitdb","id":"EDB-43054","title":"KeystoneJS 4.0.0-beta.5 - Cross-Site Scripting","type":"webapps","platform":"nodejs","date":"2017-10-25","url":"https://www.exploit-db.com/exploits/43054"}],"fixes":[{"ecosystem":"npm","package":"keystone","fixed_in":["4.0.0"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"npm","package":"keystone","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.0.0"}]}]},{"source":"osv","ecosystem":"npm","package":"keystone","ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"4.0.0"}]}]}],"products":[{"vendor":"keystonejs","product":"keystone"}],"references":[{"url":"https://github.com/keystonejs/keystone/pull/4478","tags":["x_refsource_CONFIRM","x_transferred","Issue Tracking","Patch","Third Party Advisory","fix","web"]},{"url":"http://www.securityfocus.com/bid/101541","tags":["vdb-entry","x_refsource_BID","x_transferred","Third Party Advisory","VDB Entry","advisory","web"]},{"url":"https://www.exploit-db.com/exploits/43054/","tags":["exploit","x_refsource_EXPLOIT-DB","x_transferred","Exploit","Issue Tracking","Patch","Third Party Advisory","VDB Entry","fix"]},{"url":"http://blog.securelayer7.net/keystonejs-open-source-penetration-testing-report/","tags":["x_refsource_MISC","x_transferred","Issue Tracking","Third Party Advisory","report"]},{"url":"https://packetstormsecurity.com/files/144756/KeystoneJS-4.0.0-beta.5-Unauthenticated-Stored-Cross-Site-Scripting.html","tags":["x_refsource_MISC","x_transferred","Exploit","Issue Tracking","Patch","Third Party Advisory","VDB Entry","fix","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2017-15878","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-7qcx-jmrc-h2rr","tags":["advisory"]},{"url":"https://securelayer7.net/download/pdf/KeystoneJS-Pentest-Report-SecureLayer7.pdf","tags":["web"]},{"url":"https://www.npmjs.com/advisories/980","tags":["web"]},{"url":"https://github.com/keystonejs/keystone","tags":["package"]},{"url":"https://www.exploit-db.com/exploits/43054","tags":["web"]},{"url":"http://blog.securelayer7.net/keystonejs-open-source-penetration-testing-report","tags":["web"]}],"sources":{"cve":[{"id":"CVE-2017-15878","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.","status":"published","published":"2017-10-24T21:00:00Z","modified":"2024-08-05T20:04:50.576Z","updated_at":"2026-11-02T14:33:14.271248Z"}],"euvd":[{"id":"EUVD-2017-0346","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.","status":"published","published":"2017-10-24T21:00:00Z","modified":"2024-08-05T20:04:50Z","updated_at":"2026-11-03T02:23:13.410138Z"}],"ghsa":[{"id":"GHSA-7qcx-jmrc-h2rr","title":"Cross-Site Scripting in keystone","description":"Versions of `keystone` prior to 4.0.0 are vulnerable to Cross-Site Scripting (XSS). The package fails to sanitize user input on the `Contact Us` page,  allowing attackers to submit contact forms with malicious JavaScript in the message field. The output is not properly encoded leading an admin that opens new inquiry to execute the arbitrary JavaScript supplied in their browser.\n\n\n## Recommendation\n\nUpdate to version 4.0.0 or later.","status":"published","published":"2017-11-15T19:44:16Z","modified":"2023-01-09T05:02:47Z","cvss":[{"version":"3.0","score":6.1,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:36:03.768255Z"}],"nvd":[{"id":"CVE-2017-15878","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.","status":"published","published":"2017-10-24T21:29:00.517Z","modified":"2026-06-17T01:08:25.263Z","cvss":[{"version":"3.0","score":6.1,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"primary"},{"version":"2.0","score":4.3,"vector":"AV:N/AC:M/Au:N/C:N/I:P/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:04:08.01771Z"}],"osv":[{"id":"CVE-2017-15878","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.","status":"published","published":"2017-10-24T21:29:00.517Z","modified":"2026-10-20T10:48:14.644903873Z","cvss":[{"version":"3.0","score":6.1,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T15:44:04.853379Z"},{"id":"GHSA-7qcx-jmrc-h2rr","title":"Cross-Site Scripting in keystone","description":"Versions of `keystone` prior to 4.0.0 are vulnerable to Cross-Site Scripting (XSS). The package fails to sanitize user input on the `Contact Us` page,  allowing attackers to submit contact forms with malicious JavaScript in the message field. The output is not properly encoded leading an admin that opens new inquiry to execute the arbitrary JavaScript supplied in their browser.\n\n\n## Recommendation\n\nUpdate to version 4.0.0 or later.","status":"published","published":"2017-11-15T19:44:16Z","modified":"2023-11-08T03:58:58.853594Z","cvss":[{"version":"3.0","score":6.1,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T15:46:41.349637Z"}]}}