{"url":"http://public2.vulnerablecode.io/api/vulnerabilities/54579?format=json","vulnerability_id":"VCID-mtv1-mfmx-2kdg","summary":"Cross-site Scripting\nFlarum is vulnerable to XSS.","aliases":[{"alias":"CVE-2021-32671"},{"alias":"GHSA-5qjq-69w6-fg57"}],"fixed_packages":[{"url":"http://public2.vulnerablecode.io/api/packages/80962?format=json","purl":"pkg:composer/flarum/core@1.0.2","is_vulnerable":true,"affected_by_vulnerabilities":[{"vulnerability":"VCID-9k8r-76x9-qucw"},{"vulnerability":"VCID-akuy-drq1-hkap"},{"vulnerability":"VCID-en38-mx5t-vbb9"},{"vulnerability":"VCID-jnjt-mna6-2qhe"},{"vulnerability":"VCID-rv1d-9z9z-xuh2"},{"vulnerability":"VCID-vthb-u9cs-ckak"},{"vulnerability":"VCID-yapt-ka6b-f3ba"}],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:composer/flarum/core@1.0.2"}],"affected_packages":[{"url":"http://public2.vulnerablecode.io/api/packages/80960?format=json","purl":"pkg:composer/flarum/core@1.0.0","is_vulnerable":true,"affected_by_vulnerabilities":[{"vulnerability":"VCID-9k8r-76x9-qucw"},{"vulnerability":"VCID-akuy-drq1-hkap"},{"vulnerability":"VCID-en38-mx5t-vbb9"},{"vulnerability":"VCID-jnjt-mna6-2qhe"},{"vulnerability":"VCID-mtv1-mfmx-2kdg"},{"vulnerability":"VCID-rv1d-9z9z-xuh2"},{"vulnerability":"VCID-vthb-u9cs-ckak"},{"vulnerability":"VCID-yapt-ka6b-f3ba"}],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:composer/flarum/core@1.0.0"},{"url":"http://public2.vulnerablecode.io/api/packages/80961?format=json","purl":"pkg:composer/flarum/core@1.0.1","is_vulnerable":true,"affected_by_vulnerabilities":[{"vulnerability":"VCID-9k8r-76x9-qucw"},{"vulnerability":"VCID-akuy-drq1-hkap"},{"vulnerability":"VCID-en38-mx5t-vbb9"},{"vulnerability":"VCID-jnjt-mna6-2qhe"},{"vulnerability":"VCID-mtv1-mfmx-2kdg"},{"vulnerability":"VCID-rv1d-9z9z-xuh2"},{"vulnerability":"VCID-vthb-u9cs-ckak"},{"vulnerability":"VCID-yapt-ka6b-f3ba"}],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:composer/flarum/core@1.0.1"},{"url":"http://public2.vulnerablecode.io/api/packages/80964?format=json","purl":"pkg:composer/flarum/flarum@1.0.0","is_vulnerable":true,"affected_by_vulnerabilities":[{"vulnerability":"VCID-9k8r-76x9-qucw"},{"vulnerability":"VCID-en38-mx5t-vbb9"},{"vulnerability":"VCID-mtv1-mfmx-2kdg"},{"vulnerability":"VCID-rv1d-9z9z-xuh2"},{"vulnerability":"VCID-yapt-ka6b-f3ba"}],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:composer/flarum/flarum@1.0.0"},{"url":"http://public2.vulnerablecode.io/api/packages/80965?format=json","purl":"pkg:composer/flarum/flarum@1.0.1","is_vulnerable":true,"affected_by_vulnerabilities":[{"vulnerability":"VCID-mtv1-mfmx-2kdg"}],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:composer/flarum/flarum@1.0.1"}],"references":[{"reference_url":"https://api.first.org/data/v1/epss?cve=CVE-2021-32671","reference_id":"","reference_type":"","scores":[{"value":"0.00758","scoring_system":"epss","scoring_elements":"0.73698","published_at":"2026-06-06T12:55:00Z"},{"value":"0.00758","scoring_system":"epss","scoring_elements":"0.73695","published_at":"2026-06-05T12:55:00Z"},{"value":"0.00758","scoring_system":"epss","scoring_elements":"0.73658","published_at":"2026-06-04T12:55:00Z"}],"url":"https://api.first.org/data/v1/epss?cve=CVE-2021-32671"},{"reference_url":"https://github.com/flarum/core/commit/440bed81b8019dff00642c8f493b4909d505a28a","reference_id":"","reference_type":"","scores":[{"value":"10.0","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H"},{"value":"CRITICAL","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://github.com/flarum/core/commit/440bed81b8019dff00642c8f493b4909d505a28a"},{"reference_url":"https://github.com/flarum/core/security/advisories/GHSA-5qjq-69w6-fg57","reference_id":"","reference_type":"","scores":[{"value":"10.0","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H"},{"value":"CRITICAL","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://github.com/flarum/core/security/advisories/GHSA-5qjq-69w6-fg57"},{"reference_url":"https://packagist.org/packages/flarum/core","reference_id":"","reference_type":"","scores":[{"value":"10.0","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H"},{"value":"CRITICAL","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://packagist.org/packages/flarum/core"},{"reference_url":"https://nvd.nist.gov/vuln/detail/CVE-2021-32671","reference_id":"CVE-2021-32671","reference_type":"","scores":[{"value":"10.0","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H"},{"value":"CRITICAL","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-32671"}],"weaknesses":[{"cwe_id":1035,"name":"OWASP Top Ten 2017 Category A9 - 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