{"api_version":"1","generated_at":"2026-04-23T04:10:11+00:00","cve":"CVE-2018-11627","urls":{"html":"https://cve.report/CVE-2018-11627","api":"https://cve.report/api/cve/CVE-2018-11627.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2018-11627","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2018-11627"},"summary":{"title":"CVE-2018-11627","description":"Sinatra before 2.0.2 has XSS via the 400 Bad Request page that occurs upon a params parser exception.","state":"PUBLIC","assigner":"cve@mitre.org","published_at":"2018-05-31 19:29:00","updated_at":"2019-02-26 15:03:00"},"problem_types":["CWE-79"],"metrics":[],"references":[{"url":"https://access.redhat.com/errata/RHSA-2019:0315","name":"RHSA-2019:0315","refsource":"REDHAT","tags":["Third Party Advisory"],"title":"Red Hat Customer Portal","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://github.com/sinatra/sinatra/issues/1428","name":"https://github.com/sinatra/sinatra/issues/1428","refsource":"MISC","tags":["Exploit","Third Party Advisory"],"title":"XSS from params parser exception (status code : 400) · Issue #1428 · sinatra/sinatra · GitHub","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://access.redhat.com/errata/RHSA-2019:0212","name":"RHSA-2019:0212","refsource":"REDHAT","tags":["Third Party Advisory"],"title":"Red Hat Customer Portal","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://github.com/sinatra/sinatra/commit/12786867d6faaceaec62c7c2cb5b0e2dc074d71a","name":"https://github.com/sinatra/sinatra/commit/12786867d6faaceaec62c7c2cb5b0e2dc074d71a","refsource":"MISC","tags":["Patch","Third Party Advisory"],"title":"escape invalid query params, fixes #1428 · sinatra/sinatra@1278686 · GitHub","mime":"text/html","httpstatus":"200","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2018-11627","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2018-11627","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[{"cve_year":"2018","cve_id":"11627","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"redhat","cpe5":"cloudforms","cpe6":"4.6","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2018","cve_id":"11627","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"redhat","cpe5":"cloudforms","cpe6":"4.7","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2018","cve_id":"11627","vulnerable":"1","versionEndIncluding":"1","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"redhat","cpe5":"cloudforms","cpe6":"4.6","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2018","cve_id":"11627","vulnerable":"1","versionEndIncluding":"1","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"redhat","cpe5":"cloudforms","cpe6":"4.7","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2018","cve_id":"11627","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"sinatrarb","cpe5":"sinatra","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2018","cve_id":"11627","vulnerable":"1","versionEndIncluding":"1","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"sinatrarb","cpe5":"sinatra","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"}],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[{"cve":"CVE-2018-11627","qid":"690598","title":"Free Berkeley Software Distribution (FreeBSD) Security Update for sinatra (ca05d9da-ac1d-4113-8a05-ffe9cd0d6160)"}]},"source_records":{"cve_program":{"CVE_data_meta":{"ASSIGNER":"cve@mitre.org","ID":"CVE-2018-11627","STATE":"PUBLIC"},"affects":{"vendor":{"vendor_data":[{"product":{"product_data":[{"product_name":"n/a","version":{"version_data":[{"version_value":"n/a"}]}}]},"vendor_name":"n/a"}]}},"data_format":"MITRE","data_type":"CVE","data_version":"4.0","description":{"description_data":[{"lang":"eng","value":"Sinatra before 2.0.2 has XSS via the 400 Bad Request page that occurs upon a params parser exception."}]},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"n/a"}]}]},"references":{"reference_data":[{"name":"https://github.com/sinatra/sinatra/issues/1428","refsource":"MISC","url":"https://github.com/sinatra/sinatra/issues/1428"},{"name":"RHSA-2019:0315","refsource":"REDHAT","url":"https://access.redhat.com/errata/RHSA-2019:0315"},{"name":"RHSA-2019:0212","refsource":"REDHAT","url":"https://access.redhat.com/errata/RHSA-2019:0212"},{"name":"https://github.com/sinatra/sinatra/commit/12786867d6faaceaec62c7c2cb5b0e2dc074d71a","refsource":"MISC","url":"https://github.com/sinatra/sinatra/commit/12786867d6faaceaec62c7c2cb5b0e2dc074d71a"}]}},"nvd":{"publishedDate":"2018-05-31 19:29:00","lastModifiedDate":"2019-02-26 15:03:00","problem_types":["CWE-79"],"metrics":{"baseMetricV3":{"cvssV3":{"version":"3.0","vectorString":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"REQUIRED","scope":"CHANGED","confidentialityImpact":"LOW","integrityImpact":"LOW","availabilityImpact":"NONE","baseScore":6.1,"baseSeverity":"MEDIUM"},"exploitabilityScore":2.8,"impactScore":2.7},"baseMetricV2":{"cvssV2":{"version":"2.0","vectorString":"AV:N/AC:M/Au:N/C:N/I:P/A:N","accessVector":"NETWORK","accessComplexity":"MEDIUM","authentication":"NONE","confidentialityImpact":"NONE","integrityImpact":"PARTIAL","availabilityImpact":"NONE","baseScore":4.3},"severity":"MEDIUM","exploitabilityScore":8.6,"impactScore":2.9,"acInsufInfo":false,"obtainAllPrivilege":false,"obtainUserPrivilege":false,"obtainOtherPrivilege":false,"userInteractionRequired":true}},"configurations":{"CVE_data_version":"4.0","nodes":[{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:sinatrarb:sinatra:*:*:*:*:*:*:*:*","versionEndExcluding":"2.0.2","cpe_name":[]}]},{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:redhat:cloudforms:4.6:*:*:*:*:*:*:*","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:redhat:cloudforms:4.7:*:*:*:*:*:*:*","cpe_name":[]}]}]}},"legacy_mitre":{"record":{"CveYear":"2018","CveId":"11627","Ordinal":"128104","Title":"CVE-2018-11627","CVE":"CVE-2018-11627","Year":"2018"},"notes":[{"CveYear":"2018","CveId":"11627","Ordinal":"1","NoteData":"Sinatra before 2.0.2 has XSS via the 400 Bad Request page that occurs upon a params parser exception.","Type":"Description","Title":null},{"CveYear":"2018","CveId":"11627","Ordinal":"2","NoteData":"2018-05-31","Type":"Other","Title":"Published"},{"CveYear":"2018","CveId":"11627","Ordinal":"3","NoteData":"2019-02-13","Type":"Other","Title":"Modified"}]}}}