{"api_version":"1","generated_at":"2026-04-23T02:35:02+00:00","cve":"CVE-2020-15654","urls":{"html":"https://cve.report/CVE-2020-15654","api":"https://cve.report/api/cve/CVE-2020-15654.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2020-15654","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2020-15654"},"summary":{"title":"CVE-2020-15654","description":"When in an endless loop, a website specifying a custom cursor using CSS could make it look like the user is interacting with the user interface, when they are not. This could lead to a perceived broken state, especially when interactions with existing browser dialogs and warnings do not work. This vulnerability affects Firefox ESR < 78.1, Firefox < 79, and Thunderbird < 78.1.","state":"PUBLIC","assigner":"security@mozilla.org","published_at":"2020-08-10 18:15:00","updated_at":"2023-02-02 22:19:00"},"problem_types":["CWE-835"],"metrics":[],"references":[{"url":"https://www.mozilla.org/security/advisories/mfsa2020-30/","name":"https://www.mozilla.org/security/advisories/mfsa2020-30/","refsource":"MISC","tags":["Vendor Advisory"],"title":"Security Vulnerabilities fixed in Firefox 79 — Mozilla","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00025.html","name":"openSUSE-SU-2020:1189","refsource":"SUSE","tags":["Third Party Advisory"],"title":"[security-announce] openSUSE-SU-2020:1189-1: important: Security update","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://bugzilla.mozilla.org/show_bug.cgi?id=1648333","name":"https://bugzilla.mozilla.org/show_bug.cgi?id=1648333","refsource":"MISC","tags":["Issue Tracking","Vendor Advisory"],"title":"Access Denied","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://www.mozilla.org/security/advisories/mfsa2020-32/","name":"https://www.mozilla.org/security/advisories/mfsa2020-32/","refsource":"MISC","tags":["Vendor Advisory"],"title":"Security Vulnerabilities fixed in Firefox ESR 78.1 — Mozilla","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://www.mozilla.org/security/advisories/mfsa2020-33/","name":"https://www.mozilla.org/security/advisories/mfsa2020-33/","refsource":"MISC","tags":["Vendor Advisory"],"title":"Security Vulnerabilities fixed in Thunderbird 78.1 — Mozilla","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://usn.ubuntu.com/4443-1/","name":"USN-4443-1","refsource":"UBUNTU","tags":[],"title":"USN-4443-1: Firefox vulnerabilities | Ubuntu security notices | Ubuntu","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://www.cve.org/CVERecord?id=CVE-2020-15654","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-15654","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[{"cve_year":"2020","cve_id":"15654","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"canonical","cpe5":"ubuntu_linux","cpe6":"16.04","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"esm","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2020","cve_id":"15654","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"canonical","cpe5":"ubuntu_linux","cpe6":"18.04","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"lts","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2020","cve_id":"15654","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"canonical","cpe5":"ubuntu_linux","cpe6":"20.04","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"lts","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2020","cve_id":"15654","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"mozilla","cpe5":"firefox","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2020","cve_id":"15654","vulnerable":"1","versionEndIncluding":"1","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"mozilla","cpe5":"firefox","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2020","cve_id":"15654","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"mozilla","cpe5":"firefox_esr","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2020","cve_id":"15654","vulnerable":"1","versionEndIncluding":"1","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"mozilla","cpe5":"firefox_esr","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2020","cve_id":"15654","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"mozilla","cpe5":"thunderbird","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2020","cve_id":"15654","vulnerable":"1","versionEndIncluding":"1","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"mozilla","cpe5":"thunderbird","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"}],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[{"cve":"CVE-2020-15654","qid":"296071","title":"Oracle Solaris 11.4 Support Repository Update (SRU) 27.82.1 Missing (CPUOCT2020)"},{"cve":"CVE-2020-15654","qid":"500932","title":"Alpine Linux Security Update for firefox-esr"},{"cve":"CVE-2020-15654","qid":"500952","title":"Alpine Linux Security Update for firefox"},{"cve":"CVE-2020-15654","qid":"503837","title":"Alpine Linux Security Update for firefox"}]},"source_records":{"cve_program":{"data_type":"CVE","data_format":"MITRE","data_version":"4.0","CVE_data_meta":{"ID":"CVE-2020-15654","ASSIGNER":"security@mozilla.org","STATE":"PUBLIC"},"affects":{"vendor":{"vendor_data":[{"vendor_name":"Mozilla","product":{"product_data":[{"product_name":"Firefox ESR","version":{"version_data":[{"version_value":"78.1","version_affected":"<"}]}},{"product_name":"Firefox","version":{"version_data":[{"version_value":"79","version_affected":"<"}]}},{"product_name":"Thunderbird","version":{"version_data":[{"version_value":"78.1","version_affected":"<"}]}}]}}]}},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"Custom cursor can overlay user interface"}]}]},"references":{"reference_data":[{"url":"https://www.mozilla.org/security/advisories/mfsa2020-30/","refsource":"MISC","name":"https://www.mozilla.org/security/advisories/mfsa2020-30/"},{"url":"https://www.mozilla.org/security/advisories/mfsa2020-32/","refsource":"MISC","name":"https://www.mozilla.org/security/advisories/mfsa2020-32/"},{"url":"https://www.mozilla.org/security/advisories/mfsa2020-33/","refsource":"MISC","name":"https://www.mozilla.org/security/advisories/mfsa2020-33/"},{"url":"https://bugzilla.mozilla.org/show_bug.cgi?id=1648333","refsource":"MISC","name":"https://bugzilla.mozilla.org/show_bug.cgi?id=1648333"},{"refsource":"SUSE","name":"openSUSE-SU-2020:1189","url":"http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00025.html"},{"refsource":"UBUNTU","name":"USN-4443-1","url":"https://usn.ubuntu.com/4443-1/"}]},"description":{"description_data":[{"lang":"eng","value":"When in an endless loop, a website specifying a custom cursor using CSS could make it look like the user is interacting with the user interface, when they are not. This could lead to a perceived broken state, especially when interactions with existing browser dialogs and warnings do not work. This vulnerability affects Firefox ESR < 78.1, Firefox < 79, and Thunderbird < 78.1."}]}},"nvd":{"publishedDate":"2020-08-10 18:15:00","lastModifiedDate":"2023-02-02 22:19:00","problem_types":["CWE-835"],"metrics":{"baseMetricV3":{"cvssV3":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"REQUIRED","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"HIGH","availabilityImpact":"NONE","baseScore":6.5,"baseSeverity":"MEDIUM"},"exploitabilityScore":2.8,"impactScore":3.6},"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:mozilla:thunderbird:*:*:*:*:*:*:*:*","versionEndExcluding":"78.1","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:*","versionEndExcluding":"78.1","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*","versionEndExcluding":"79.0","cpe_name":[]}]},{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:*","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:*","cpe_name":[]}]}]}},"legacy_mitre":{"record":{"CveYear":"2020","CveId":"15654","Ordinal":"177052","Title":"CVE-2020-15654","CVE":"CVE-2020-15654","Year":"2020"},"notes":[{"CveYear":"2020","CveId":"15654","Ordinal":"1","NoteData":"When in an endless loop, a website specifying a custom cursor using CSS could make it look like the user is interacting with the user interface, when they are not. This could lead to a perceived broken state, especially when interactions with existing browser dialogs and warnings do not work. This vulnerability affects Firefox ESR < 78.1, Firefox < 79, and Thunderbird < 78.1.","Type":"Description","Title":null},{"CveYear":"2020","CveId":"15654","Ordinal":"2","NoteData":"2020-08-10","Type":"Other","Title":"Published"},{"CveYear":"2020","CveId":"15654","Ordinal":"3","NoteData":"2020-08-18","Type":"Other","Title":"Modified"}]}}}