CVE-2017-7839

{"containers": {"cna": {"affected": [{"product": "Firefox", "vendor": "Mozilla", "versions": [{"lessThan": "57", "status": "affected", "version": "unspecified", "versionType": "custom"}]}], "datePublic": "2017-11-14T00:00:00.000Z", "descriptions": [{"lang": "en", "value": "Control characters prepended before \"javascript:\" URLs pasted in the addressbar can cause the leading characters to be ignored and the pasted JavaScript to be executed instead of being blocked. This could be used in social engineering and self-cross-site-scripting (self-XSS) attacks where users are convinced to copy and paste text into the addressbar. This vulnerability affects Firefox < 57."}], "problemTypes": [{"descriptions": [{"description": "Control characters before javascript: URLs defeats self-XSS prevention mechanism", "lang": "en", "type": "text"}]}], "providerMetadata": {"dateUpdated": "2018-06-12T09:57:01.000Z", "orgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe", "shortName": "mozilla"}, "references": [{"tags": ["x_refsource_CONFIRM"], "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1402896"}, {"tags": ["x_refsource_CONFIRM"], "url": "https://www.mozilla.org/security/advisories/mfsa2017-24/"}, {"name": "101832", "tags": ["vdb-entry", "x_refsource_BID"], "url": "http://www.securityfocus.com/bid/101832"}, {"name": "1039803", "tags": ["vdb-entry", "x_refsource_SECTRACK"], "url": "http://www.securitytracker.com/id/1039803"}], "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "security@mozilla.org", "ID": "CVE-2017-7839", "STATE": "PUBLIC"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "Firefox", "version": {"version_data": [{"version_affected": "<", "version_value": "57"}]}}]}, "vendor_name": "Mozilla"}]}}, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "Control characters prepended before \"javascript:\" URLs pasted in the addressbar can cause the leading characters to be ignored and the pasted JavaScript to be executed instead of being blocked. This could be used in social engineering and self-cross-site-scripting (self-XSS) attacks where users are convinced to copy and paste text into the addressbar. This vulnerability affects Firefox < 57."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "Control characters before javascript: URLs defeats self-XSS prevention mechanism"}]}]}, "references": {"reference_data": [{"name": "https://bugzilla.mozilla.org/show_bug.cgi?id=1402896", "refsource": "CONFIRM", "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1402896"}, {"name": "https://www.mozilla.org/security/advisories/mfsa2017-24/", "refsource": "CONFIRM", "url": "https://www.mozilla.org/security/advisories/mfsa2017-24/"}, {"name": "101832", "refsource": "BID", "url": "http://www.securityfocus.com/bid/101832"}, {"name": "1039803", "refsource": "SECTRACK", "url": "http://www.securitytracker.com/id/1039803"}]}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-05T16:19:27.701Z"}, "title": "CVE Program Container", "references": [{"tags": ["x_refsource_CONFIRM", "x_transferred"], "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1402896"}, {"tags": ["x_refsource_CONFIRM", "x_transferred"], "url": "https://www.mozilla.org/security/advisories/mfsa2017-24/"}, {"name": "101832", "tags": ["vdb-entry", "x_refsource_BID", "x_transferred"], "url": "http://www.securityfocus.com/bid/101832"}, {"name": "1039803", "tags": ["vdb-entry", "x_refsource_SECTRACK", "x_transferred"], "url": "http://www.securitytracker.com/id/1039803"}]}]}, "cveMetadata": {"assignerOrgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe", "assignerShortName": "mozilla", "cveId": "CVE-2017-7839", "datePublished": "2018-06-11T21:00:00.000Z", "dateReserved": "2017-04-12T00:00:00.000Z", "dateUpdated": "2024-08-05T16:19:27.701Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

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{"affected": [{"affectedData": [{"product": "Firefox", "vendor": "Mozilla", "versions": [{"lessThan": "57", "status": "affected", "version": "unspecified", "versionType": "custom"}]}], "source": "security@mozilla.org"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*", "matchCriteriaId": "EA62B76A-2D57-426E-8529-6B3C1AF85F4A", "versionEndIncluding": "56.0.2", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Control characters prepended before \"javascript:\" URLs pasted in the addressbar can cause the leading characters to be ignored and the pasted JavaScript to be executed instead of being blocked. This could be used in social engineering and self-cross-site-scripting (self-XSS) attacks where users are convinced to copy and paste text into the addressbar. This vulnerability affects Firefox < 57."}, {"lang": "es", "value": "Caracteres de control precedidos de las URL \"javascript:\" pegadas en la barra de direcciones pueden hacer que se ignoren los caracteres principales y que se ejecute el c\u00f3digo JavaScript pegado en lugar de bloquearse. Esto podr\u00eda utilizarse en ataques de ingenier\u00eda social y auto-Cross-Site Scripting (self-XSS) donde se convence a los usuarios de que copien y peguen texto en la barra de direcciones. Esta vulnerabilidad afecta a las versiones anteriores a la 57 de Firefox."}], "id": "CVE-2017-7839", "lastModified": "2026-06-17T01:25:19.147", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "MEDIUM", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "NONE", "baseScore": 4.3, "confidentialityImpact": "NONE", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:M/Au:N/C:N/I:P/A:N", "version": "2.0"}, "exploitabilityScore": 8.6, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV30": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 6.1, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N", "version": "3.0"}, "exploitabilityScore": 2.8, "impactScore": 2.7, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2018-06-11T21:29:11.780", "references": [{"source": "security@mozilla.org", "tags": ["Third Party Advisory", "VDB Entry"], "url": "http://www.securityfocus.com/bid/101832"}, {"source": "security@mozilla.org", "tags": ["Third Party Advisory", "VDB Entry"], "url": "http://www.securitytracker.com/id/1039803"}, {"source": "security@mozilla.org", "tags": ["Issue Tracking", "Permissions Required"], "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1402896"}, {"source": "security@mozilla.org", "tags": ["Vendor Advisory"], "url": "https://www.mozilla.org/security/advisories/mfsa2017-24/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory", "VDB Entry"], "url": "http://www.securityfocus.com/bid/101832"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory", "VDB Entry"], "url": "http://www.securitytracker.com/id/1039803"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Issue Tracking", "Permissions Required"], "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1402896"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "https://www.mozilla.org/security/advisories/mfsa2017-24/"}], "sourceIdentifier": "security@mozilla.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-79"}], "source": "nvd@nist.gov", "type": "Primary"}]}

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