CVE-2021-33604

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"descriptions": [{"lang": "en", "value": "URL encoding error in development mode handler in com.vaadin:flow-server versions 2.0.0 through 2.6.1 (Vaadin 14.0.0 through 14.6.1), 3.0.0 through 6.0.9 (Vaadin 15.0.0 through 19.0.8) allows local user to execute arbitrary JavaScript code by opening crafted URL in browser."}], "metrics": [{"cvssV3_1": {"attackComplexity": "HIGH", "attackVector": "LOCAL", "availabilityImpact": "NONE", "baseScore": 2.5, "baseSeverity": "LOW", "confidentialityImpact": "LOW", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N", "version": "3.1"}}], "problemTypes": [{"descriptions": [{"cweId": "CWE-172", "description": "CWE-172 Encoding Error", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"dateUpdated": "2021-06-24T11:16:27.000Z", "orgId": "9e0f3122-90e9-42d5-93de-8c6b98deef7e", "shortName": "Vaadin"}, "references": [{"tags": ["x_refsource_CONFIRM"], "url": "https://vaadin.com/security/cve-2021-33604"}, {"tags": ["x_refsource_CONFIRM"], "url": "https://github.com/vaadin/flow/pull/11099"}], "source": {"discovery": "INTERNAL"}, "title": "Reflected cross-site scripting in development mode handler in Vaadin 14, 15-19", "x_generator": {"engine": "Vulnogram 0.0.9"}, "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "security@vaadin.com", "DATE_PUBLIC": "2021-06-24T09:55:00.000Z", "ID": "CVE-2021-33604", "STATE": "PUBLIC", "TITLE": "Reflected cross-site scripting in development mode handler in Vaadin 14, 15-19"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "Vaadin", "version": {"version_data": [{"version_affected": ">=", "version_value": "14.0.0"}, {"version_affected": "<=", "version_value": "14.6.1"}, {"version_affected": ">=", "version_value": "15.0.0"}, {"version_affected": "<=", "version_value": "19.0.8"}]}}, {"product_name": "flow-server", "version": {"version_data": 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"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:vaadin:flow-server:*:*:*:*:*:*:*:*", "matchCriteriaId": "EFD551C5-B7BB-45F2-BBDD-B7181E18B3E0", "versionEndIncluding": "2.6.1", "versionStartIncluding": "2.0.0", "vulnerable": true}, {"criteria": "cpe:2.3:a:vaadin:flow-server:*:*:*:*:*:*:*:*", "matchCriteriaId": "FEF29305-886B-45FA-A98D-B9C2524B4891", "versionEndIncluding": "5.0.0", "versionStartIncluding": "3.0.0", "vulnerable": true}, {"criteria": "cpe:2.3:a:vaadin:flow-server:*:*:*:*:*:*:*:*", "matchCriteriaId": "EB09AE9F-4900-4A18-8071-A5B0E713335F", "versionEndIncluding": "6.0.9", "versionStartIncluding": "6.0.0", "vulnerable": true}, {"criteria": "cpe:2.3:a:vaadin:vaadin:*:*:*:*:*:*:*:*", "matchCriteriaId": "4367271F-BC87-4C32-BBFC-F9F97ACD2D33", "versionEndIncluding": "14.6.1", "versionStartIncluding": "14.0.0", "vulnerable": true}, {"criteria": "cpe:2.3:a:vaadin:vaadin:*:*:*:*:*:*:*:*", "matchCriteriaId": "DC99FEC9-DABA-4E7E-AA04-67146840B360", "versionEndIncluding": "18.0.0", "versionStartIncluding": "15.0.0", "vulnerable": true}, {"criteria": "cpe:2.3:a:vaadin:vaadin:*:*:*:*:*:*:*:*", "matchCriteriaId": "64FCA0F3-0104-490C-B8CA-860B52BCAC29", "versionEndIncluding": "19.0.8", "versionStartIncluding": "19.0.0", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "URL encoding error in development mode handler in com.vaadin:flow-server versions 2.0.0 through 2.6.1 (Vaadin 14.0.0 through 14.6.1), 3.0.0 through 6.0.9 (Vaadin 15.0.0 through 19.0.8) allows local user to execute arbitrary JavaScript code by opening crafted URL in browser."}, {"lang": "es", "value": "Un error de codificaci\u00f3n de URL en el manejador de modo de desarrollo en com.vaadin:flow-server versiones 2.0.0 hasta 2.6.1 (Vaadin versiones 14.0.0 hasta 14.6.1), versiones 3.0.0 hasta 6.0.9 (Vaadin versiones 15.0.0 hasta 19.0.8) permite a un usuario local ejecutar c\u00f3digo JavaScript arbitrario al abrir una URL dise\u00f1ada en el navegador"}], "id": "CVE-2021-33604", "lastModified": "2026-06-17T03:54:51.847", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "LOW", "cvssData": {"accessComplexity": "HIGH", "accessVector": "LOCAL", "authentication": "NONE", "availabilityImpact": "NONE", "baseScore": 1.2, "confidentialityImpact": "PARTIAL", "integrityImpact": "NONE", "vectorString": "AV:L/AC:H/Au:N/C:P/I:N/A:N", "version": "2.0"}, "exploitabilityScore": 1.9, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": true}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "LOCAL", "availabilityImpact": "NONE", "baseScore": 2.5, "baseSeverity": "LOW", "confidentialityImpact": "LOW", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": 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