Vulnerability Instance
Lookup for vulnerabilities affecting packages.
GET /api/vulnerabilities/63217?format=api
{ "url": "http://public2.vulnerablecode.io/api/vulnerabilities/63217?format=api", "vulnerability_id": "VCID-qm3n-zmh9-afgy", "summary": "By triggering multiple pop-up prompts containing javascript: URLs, a malicious webpage could have forced a Firefox for Android user into executing attacker-controlled JavaScript in the context of another domain, resulting in a Universal Cross-Site Scripting vulnerability.*Note: This issue only affected Firefox for Android. Other operating systems are unaffected.*", "aliases": [ { "alias": "CVE-2021-29953" } ], "fixed_packages": [ { "url": "http://public2.vulnerablecode.io/api/packages/582227?format=api", "purl": "pkg:deb/debian/firefox@0?distro=sid", "is_vulnerable": false, "affected_by_vulnerabilities": [], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/firefox@0%3Fdistro=sid" }, { "url": "http://public2.vulnerablecode.io/api/packages/582059?format=api", "purl": "pkg:deb/debian/firefox@149.0-1?distro=sid", "is_vulnerable": false, "affected_by_vulnerabilities": [], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/firefox@149.0-1%3Fdistro=sid" }, { "url": "http://public2.vulnerablecode.io/api/packages/1059611?format=api", "purl": "pkg:deb/debian/firefox@149.0.2-1?distro=sid", "is_vulnerable": false, "affected_by_vulnerabilities": [], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/firefox@149.0.2-1%3Fdistro=sid" }, { "url": "http://public2.vulnerablecode.io/api/packages/1076056?format=api", "purl": "pkg:deb/debian/firefox@150.0-1?distro=sid", "is_vulnerable": false, "affected_by_vulnerabilities": [], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/firefox@150.0-1%3Fdistro=sid" }, { "url": "http://public2.vulnerablecode.io/api/packages/1088670?format=api", "purl": "pkg:deb/debian/firefox@150.0.1-1?distro=sid", "is_vulnerable": false, "affected_by_vulnerabilities": [], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/firefox@150.0.1-1%3Fdistro=sid" }, { "url": "http://public2.vulnerablecode.io/api/packages/1105248?format=api", "purl": "pkg:deb/debian/firefox@150.0.2-1?distro=sid", "is_vulnerable": false, "affected_by_vulnerabilities": [], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/firefox@150.0.2-1%3Fdistro=sid" }, { "url": "http://public2.vulnerablecode.io/api/packages/1112518?format=api", "purl": "pkg:deb/debian/firefox@150.0.3-1?distro=sid", "is_vulnerable": false, "affected_by_vulnerabilities": [], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/firefox@150.0.3-1%3Fdistro=sid" }, { "url": "http://public2.vulnerablecode.io/api/packages/86299?format=api", "purl": "pkg:mozilla/Firefox@88.0.1", "is_vulnerable": false, "affected_by_vulnerabilities": [], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:mozilla/Firefox@88.0.1" }, { "url": "http://public2.vulnerablecode.io/api/packages/86300?format=api", "purl": "pkg:mozilla/Firefox%20for%20Android@88.1.3", "is_vulnerable": false, "affected_by_vulnerabilities": [], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:mozilla/Firefox%2520for%2520Android@88.1.3" } ], "affected_packages": [ { "url": "http://public2.vulnerablecode.io/api/packages/371196?format=api", "purl": "pkg:alpm/archlinux/firefox@88.0-1", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-ndp1-5bhw-8kau" }, { "vulnerability": "VCID-qm3n-zmh9-afgy" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:alpm/archlinux/firefox@88.0-1" } ], "references": [ { "reference_url": "https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2021-29953.json", "reference_id": "", "reference_type": "", "scores": [ { "value": "6.1", "scoring_system": "cvssv3", "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N" } ], "url": "https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2021-29953.json" }, { "reference_url": "https://api.first.org/data/v1/epss?cve=CVE-2021-29953", "reference_id": "", "reference_type": "", "scores": [ { "value": "0.00392", "scoring_system": "epss", "scoring_elements": "0.60103", "published_at": "2026-04-01T12:55:00Z" }, { "value": "0.00392", "scoring_system": "epss", "scoring_elements": "0.60355", "published_at": "2026-05-15T12:55:00Z" }, { "value": "0.00392", "scoring_system": "epss", "scoring_elements": "0.60283", "published_at": "2026-05-12T12:55:00Z" }, { "value": "0.00392", "scoring_system": "epss", "scoring_elements": "0.60343", "published_at": "2026-05-14T12:55:00Z" }, { "value": "0.00392", "scoring_system": "epss", "scoring_elements": "0.6018", "published_at": "2026-04-02T12:55:00Z" }, { "value": "0.00392", "scoring_system": "epss", "scoring_elements": "0.60205", "published_at": "2026-04-04T12:55:00Z" }, { "value": "0.00392", "scoring_system": "epss", "scoring_elements": "0.60174", "published_at": "2026-04-07T12:55:00Z" }, { "value": "0.00392", "scoring_system": "epss", "scoring_elements": "0.60223", "published_at": "2026-04-08T12:55:00Z" }, { "value": "0.00392", "scoring_system": "epss", "scoring_elements": "0.60238", "published_at": "2026-04-09T12:55:00Z" }, { "value": "0.00392", "scoring_system": "epss", "scoring_elements": "0.60259", "published_at": "2026-04-11T12:55:00Z" }, { "value": "0.00392", "scoring_system": "epss", "scoring_elements": "0.60245", "published_at": "2026-04-12T12:55:00Z" }, { "value": "0.00392", "scoring_system": "epss", "scoring_elements": "0.60228", "published_at": "2026-04-13T12:55:00Z" }, { "value": "0.00392", "scoring_system": "epss", "scoring_elements": "0.60268", "published_at": "2026-04-16T12:55:00Z" }, { "value": "0.00392", "scoring_system": "epss", "scoring_elements": "0.60275", "published_at": "2026-04-18T12:55:00Z" }, { "value": "0.00392", "scoring_system": "epss", "scoring_elements": "0.60262", "published_at": "2026-04-21T12:55:00Z" }, { "value": "0.00392", "scoring_system": "epss", "scoring_elements": "0.60234", "published_at": "2026-04-24T12:55:00Z" }, { "value": "0.00392", "scoring_system": "epss", "scoring_elements": "0.6025", "published_at": "2026-04-26T12:55:00Z" }, { "value": "0.00392", "scoring_system": "epss", "scoring_elements": "0.60237", "published_at": "2026-04-29T12:55:00Z" }, { "value": "0.00392", "scoring_system": "epss", "scoring_elements": "0.60194", "published_at": "2026-05-05T12:55:00Z" }, { "value": "0.00392", "scoring_system": "epss", "scoring_elements": "0.60241", "published_at": "2026-05-07T12:55:00Z" }, { "value": "0.00392", "scoring_system": "epss", "scoring_elements": "0.60299", "published_at": "2026-05-09T12:55:00Z" }, { "value": "0.00392", "scoring_system": "epss", "scoring_elements": "0.60256", "published_at": "2026-05-11T12:55:00Z" } ], "url": "https://api.first.org/data/v1/epss?cve=CVE-2021-29953" }, { "reference_url": "https://bugzilla.redhat.com/show_bug.cgi?id=1961493", "reference_id": "1961493", "reference_type": "", "scores": [], "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1961493" }, { "reference_url": "https://security.archlinux.org/AVG-1918", "reference_id": "AVG-1918", "reference_type": "", "scores": [ { "value": "Critical", "scoring_system": "archlinux", "scoring_elements": "" } ], "url": "https://security.archlinux.org/AVG-1918" }, { "reference_url": "https://www.mozilla.org/en-US/security/advisories/mfsa2021-20", "reference_id": "mfsa2021-20", "reference_type": "", "scores": [ { "value": "critical", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://www.mozilla.org/en-US/security/advisories/mfsa2021-20" } ], "weaknesses": [ { "cwe_id": 79, "name": "Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')", "description": "The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users." } ], "exploits": [], "severity_range_score": "6.1 - 10.0", "exploitability": "0.5", "weighted_severity": "9.0", "risk_score": 4.5, "resource_url": "http://public2.vulnerablecode.io/vulnerabilities/VCID-qm3n-zmh9-afgy" }