{"api_version":"1","generated_at":"2026-07-23T12:51:28+00:00","cve":"CVE-2021-46387","urls":{"html":"https://cve.report/CVE-2021-46387","api":"https://cve.report/api/cve/CVE-2021-46387.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2021-46387","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2021-46387"},"summary":{"title":"CVE-2021-46387","description":"ZyXEL ZyWALL 2 Plus Internet Security Appliance is affected by Cross Site Scripting (XSS). Insecure URI handling leads to bypass security restriction to achieve Cross Site Scripting, which allows an attacker able to execute arbitrary JavaScript codes to perform multiple attacks such as clipboard hijacking and session hijacking.","state":"PUBLIC","assigner":"cve@mitre.org","published_at":"2022-03-01 15:15:00","updated_at":"2022-03-09 13:17:00"},"problem_types":["CWE-79"],"metrics":[],"references":[{"url":"http://packetstormsecurity.com/files/166189/Zyxel-ZyWALL-2-Plus-Cross-Site-Scripting.html","name":"http://packetstormsecurity.com/files/166189/Zyxel-ZyWALL-2-Plus-Cross-Site-Scripting.html","refsource":"MISC","tags":[],"title":"Zyxel ZyWALL 2 Plus Cross Site Scripting ≈ Packet Storm","mime":"text/html","httpstatus":"200","archivestatus":"404"},{"url":"https://www.zyxel.com/uk/en/products_services/zywall_2_plus.shtml","name":"https://www.zyxel.com/uk/en/products_services/zywall_2_plus.shtml","refsource":"MISC","tags":[],"title":"ZyWALL 2 Plus","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://drive.google.com/drive/folders/1_XfWBLqxT2Mqt7uB663Sjlc62pE8-rcN?usp=sharing","name":"https://drive.google.com/drive/folders/1_XfWBLqxT2Mqt7uB663Sjlc62pE8-rcN?usp=sharing","refsource":"MISC","tags":[],"title":"Update your browser to use Google Drive, Docs, Sheets, Sites, Slides, and Forms - Google Drive Help","mime":"text/html","httpstatus":"200","archivestatus":"404"},{"url":"https://www.zyxel.com/us/en/support/security_advisories.shtml","name":"https://www.zyxel.com/us/en/support/security_advisories.shtml","refsource":"MISC","tags":[],"title":"Security Advisories | Zyxel","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://www.cve.org/CVERecord?id=CVE-2021-46387","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-46387","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[{"cve_year":"2021","cve_id":"46387","vulnerable":"-1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"h","cpe4":"zyxel","cpe5":"zywall_2_plus_internet_security_appliance","cpe6":"-","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2021","cve_id":"46387","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"zyxel","cpe5":"zywall_2_plus_internet_security_appliance_firmware","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-2021-46387","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":"ZyXEL ZyWALL 2 Plus Internet Security Appliance is affected by Cross Site Scripting (XSS). Insecure URI handling leads to bypass security restriction to achieve Cross Site Scripting, which allows an attacker able to execute arbitrary JavaScript codes to perform multiple attacks such as clipboard hijacking and session hijacking."}]},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"n/a"}]}]},"references":{"reference_data":[{"url":"https://www.zyxel.com/us/en/support/security_advisories.shtml","refsource":"MISC","name":"https://www.zyxel.com/us/en/support/security_advisories.shtml"},{"url":"https://www.zyxel.com/uk/en/products_services/zywall_2_plus.shtml","refsource":"MISC","name":"https://www.zyxel.com/uk/en/products_services/zywall_2_plus.shtml"},{"url":"https://drive.google.com/drive/folders/1_XfWBLqxT2Mqt7uB663Sjlc62pE8-rcN?usp=sharing","refsource":"MISC","name":"https://drive.google.com/drive/folders/1_XfWBLqxT2Mqt7uB663Sjlc62pE8-rcN?usp=sharing"},{"refsource":"MISC","name":"http://packetstormsecurity.com/files/166189/Zyxel-ZyWALL-2-Plus-Cross-Site-Scripting.html","url":"http://packetstormsecurity.com/files/166189/Zyxel-ZyWALL-2-Plus-Cross-Site-Scripting.html"}]}},"nvd":{"publishedDate":"2022-03-01 15:15:00","lastModifiedDate":"2022-03-09 13:17:00","problem_types":["CWE-79"],"metrics":{"baseMetricV3":{"cvssV3":{"version":"3.1","vectorString":"CVSS:3.1/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":"AND","children":[{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:o:zyxel:zywall_2_plus_internet_security_appliance_firmware:-:*:*:*:*:*:*:*","cpe_name":[]}]},{"operator":"OR","children":[],"cpe_match":[{"vulnerable":false,"cpe23Uri":"cpe:2.3:h:zyxel:zywall_2_plus_internet_security_appliance:-:*:*:*:*:*:*:*","cpe_name":[]}]}],"cpe_match":[]}]}},"legacy_mitre":{"record":{"CveYear":"2021","CveId":"46387","Ordinal":"226183","Title":"CVE-2021-46387","CVE":"CVE-2021-46387","Year":"2021"},"notes":[]}}}