{"api_version":"1","generated_at":"2026-07-24T20:03:25+00:00","cve":"CVE-2020-18723","urls":{"html":"https://cve.report/CVE-2020-18723","api":"https://cve.report/api/cve/CVE-2020-18723.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2020-18723","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2020-18723"},"summary":{"title":"CVE-2020-18723","description":"Stored cross-site scripting (XSS) in file attachment field in MDaemon webmail 19.5.5 allows an attacker to execute code on the email recipient side while forwarding an email to perform potentially malicious activities.","state":"PUBLIC","assigner":"cve@mitre.org","published_at":"2021-02-03 18:15:00","updated_at":"2021-02-25 17:17:00"},"problem_types":["CWE-79"],"metrics":[],"references":[{"url":"http://packetstormsecurity.com/files/161332/Alt-N-MDaemon-Webmail-20.0.0-Cross-Site-Scripting.html","name":"http://packetstormsecurity.com/files/161332/Alt-N-MDaemon-Webmail-20.0.0-Cross-Site-Scripting.html","refsource":"MISC","tags":["Exploit","Third Party Advisory","VDB Entry"],"title":"Alt-N MDaemon Webmail 20.0.0 Cross Site Scripting ≈ Packet Storm","mime":"text/html","httpstatus":"200","archivestatus":"404"},{"url":"http://kailashbohara.com.np/blog/2020/07/15/mdaemon-stored-xss","name":"http://kailashbohara.com.np/blog/2020/07/15/mdaemon-stored-xss","refsource":"MISC","tags":["Exploit","Third Party Advisory"],"title":"Stored Cross Site Scripting on Mdaemon Webmail (20.0.0) – Kailash","mime":"text/html","httpstatus":"200","archivestatus":"0"},{"url":"https://www.altn.com/Support/SecurityUpdate/MD082520_MDaemon_EN/","name":"https://www.altn.com/Support/SecurityUpdate/MD082520_MDaemon_EN/","refsource":"MISC","tags":["Vendor Advisory"],"title":"MDaemon Patch Bulletin – MD082520","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://www.cve.org/CVERecord?id=CVE-2020-18723","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-18723","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[{"cve_year":"2020","cve_id":"18723","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"altn","cpe5":"mdaemon_webmail","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2020","cve_id":"18723","vulnerable":"1","versionEndIncluding":"1","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"altn","cpe5":"mdaemon_webmail","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"}],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"CVE_data_meta":{"ASSIGNER":"cve@mitre.org","ID":"CVE-2020-18723","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":"Stored cross-site scripting (XSS) in file attachment field in MDaemon webmail 19.5.5 allows an attacker to execute code on the email recipient side while forwarding an email to perform potentially malicious activities."}]},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"n/a"}]}]},"references":{"reference_data":[{"url":"http://kailashbohara.com.np/blog/2020/07/15/mdaemon-stored-xss","refsource":"MISC","name":"http://kailashbohara.com.np/blog/2020/07/15/mdaemon-stored-xss"},{"refsource":"MISC","name":"https://www.altn.com/Support/SecurityUpdate/MD082520_MDaemon_EN/","url":"https://www.altn.com/Support/SecurityUpdate/MD082520_MDaemon_EN/"},{"refsource":"MISC","name":"http://packetstormsecurity.com/files/161332/Alt-N-MDaemon-Webmail-20.0.0-Cross-Site-Scripting.html","url":"http://packetstormsecurity.com/files/161332/Alt-N-MDaemon-Webmail-20.0.0-Cross-Site-Scripting.html"}]}},"nvd":{"publishedDate":"2021-02-03 18:15:00","lastModifiedDate":"2021-02-25 17:17:00","problem_types":["CWE-79"],"metrics":{"baseMetricV3":{"cvssV3":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"REQUIRED","scope":"CHANGED","confidentialityImpact":"LOW","integrityImpact":"LOW","availabilityImpact":"NONE","baseScore":5.4,"baseSeverity":"MEDIUM"},"exploitabilityScore":2.3,"impactScore":2.7},"baseMetricV2":{"cvssV2":{"version":"2.0","vectorString":"AV:N/AC:M/Au:S/C:N/I:P/A:N","accessVector":"NETWORK","accessComplexity":"MEDIUM","authentication":"SINGLE","confidentialityImpact":"NONE","integrityImpact":"PARTIAL","availabilityImpact":"NONE","baseScore":3.5},"severity":"LOW","exploitabilityScore":6.8,"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:altn:mdaemon_webmail:*:*:*:*:*:*:*:*","versionEndExcluding":"20.0.1","cpe_name":[]}]}]}},"legacy_mitre":{"record":{"CveYear":"2020","CveId":"18723","Ordinal":"180132","Title":"CVE-2020-18723","CVE":"CVE-2020-18723","Year":"2020"},"notes":[{"CveYear":"2020","CveId":"18723","Ordinal":"1","NoteData":"Stored cross-site scripting (XSS) in file attachment field in MDaemon webmail 19.5.5 allows an attacker to execute code on the email recipient side while forwarding an email to perform potentially malicious activities.","Type":"Description","Title":null},{"CveYear":"2020","CveId":"18723","Ordinal":"2","NoteData":"2021-02-03","Type":"Other","Title":"Published"},{"CveYear":"2020","CveId":"18723","Ordinal":"3","NoteData":"2021-02-08","Type":"Other","Title":"Modified"}]}}}