Package Instance
Lookup for vulnerable packages by Package URL.
GET /api/packages/569429?format=api
{ "url": "http://public2.vulnerablecode.io/api/packages/569429?format=api", "purl": "pkg:composer/typo3/cms-backend@8.7.39", "type": "composer", "namespace": "typo3", "name": "cms-backend", "version": "8.7.39", "qualifiers": {}, "subpath": "", "is_vulnerable": true, "next_non_vulnerable_version": "9.5.25", "latest_non_vulnerable_version": "14.0.2", "affected_by_vulnerabilities": [ { "url": "http://public2.vulnerablecode.io/api/vulnerabilities/42359?format=api", "vulnerability_id": "VCID-t3jn-vwbx-u7cr", "summary": "Cross-Site Scripting in Content Preview (CType menu)\n### Problem\nIt has been discovered that content elements of type _menu_ are vulnerable to cross-site scripting when their referenced items get previewed in the page module. A valid backend user account is needed to exploit this vulnerability.\n\n### Solution\nUpdate to TYPO3 versions 7.6.51, 8.7.40, 9.5.25, 10.4.14, 11.1.1 that fix the problem described.\n\n### Credits\nThanks to TYPO3 contributor Oliver Bartsch who reported and fixed the issue.\n\n### References\n* [TYPO3-CORE-SA-2021-008](https://typo3.org/security/advisory/typo3-core-sa-2021-008)", "references": [ { "reference_url": "https://api.first.org/data/v1/epss?cve=CVE-2021-21370", "reference_id": "", "reference_type": "", "scores": [ { "value": "0.00342", "scoring_system": "epss", "scoring_elements": "0.56917", "published_at": "2026-04-18T12:55:00Z" }, { "value": "0.00342", "scoring_system": "epss", "scoring_elements": "0.56779", "published_at": "2026-04-01T12:55:00Z" }, { "value": "0.00342", "scoring_system": "epss", "scoring_elements": "0.56873", "published_at": "2026-04-02T12:55:00Z" }, { "value": "0.00342", "scoring_system": "epss", "scoring_elements": "0.56895", "published_at": "2026-04-21T12:55:00Z" }, { "value": "0.00342", "scoring_system": "epss", "scoring_elements": "0.56871", "published_at": "2026-04-07T12:55:00Z" }, { "value": "0.00342", "scoring_system": "epss", "scoring_elements": "0.56922", "published_at": "2026-04-08T12:55:00Z" }, { "value": "0.00342", "scoring_system": "epss", "scoring_elements": "0.56926", "published_at": "2026-04-09T12:55:00Z" }, { "value": "0.00342", "scoring_system": "epss", "scoring_elements": "0.56935", "published_at": "2026-04-11T12:55:00Z" }, { "value": "0.00342", "scoring_system": "epss", "scoring_elements": "0.56914", "published_at": "2026-04-12T12:55:00Z" }, { "value": "0.00342", "scoring_system": "epss", "scoring_elements": "0.56891", "published_at": "2026-04-13T12:55:00Z" }, { "value": "0.00342", "scoring_system": "epss", "scoring_elements": "0.56921", "published_at": "2026-04-16T12:55:00Z" } ], "url": "https://api.first.org/data/v1/epss?cve=CVE-2021-21370" }, { "reference_url": "https://github.com/FriendsOfPHP/security-advisories/blob/master/typo3/cms-core/CVE-2021-21370.yaml", "reference_id": "", "reference_type": "", "scores": [ { "value": "5.4", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N" }, { "value": "MODERATE", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://github.com/FriendsOfPHP/security-advisories/blob/master/typo3/cms-core/CVE-2021-21370.yaml" }, { "reference_url": "https://github.com/FriendsOfPHP/security-advisories/blob/master/typo3/cms/CVE-2021-21370.yaml", "reference_id": "", "reference_type": "", "scores": [ { "value": "5.4", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N" }, { "value": "MODERATE", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://github.com/FriendsOfPHP/security-advisories/blob/master/typo3/cms/CVE-2021-21370.yaml" }, { "reference_url": "https://github.com/TYPO3/TYPO3.CMS/security/advisories/GHSA-x7hc-x7fm-f7qh", "reference_id": "", "reference_type": "", "scores": [ { "value": "5.4", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N" }, { "value": "MODERATE", "scoring_system": "cvssv3.1_qr", "scoring_elements": "" }, { "value": "MODERATE", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://github.com/TYPO3/TYPO3.CMS/security/advisories/GHSA-x7hc-x7fm-f7qh" }, { "reference_url": "https://nvd.nist.gov/vuln/detail/CVE-2021-21370", "reference_id": "", "reference_type": "", "scores": [ { "value": "5.4", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N" }, { "value": "MODERATE", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-21370" }, { "reference_url": "https://packagist.org/packages/typo3/cms-backend", "reference_id": "", "reference_type": "", "scores": [ { "value": "5.4", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N" }, { "value": "MODERATE", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://packagist.org/packages/typo3/cms-backend" }, { "reference_url": "https://typo3.org/security/advisory/typo3-core-sa-2021-008", "reference_id": "", "reference_type": "", "scores": [ { "value": "5.4", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N" }, { "value": "MODERATE", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://typo3.org/security/advisory/typo3-core-sa-2021-008" }, { "reference_url": "https://github.com/advisories/GHSA-x7hc-x7fm-f7qh", "reference_id": "GHSA-x7hc-x7fm-f7qh", "reference_type": "", "scores": [ { "value": "MODERATE", "scoring_system": "cvssv3.1_qr", "scoring_elements": "" } ], "url": "https://github.com/advisories/GHSA-x7hc-x7fm-f7qh" } ], "fixed_packages": [ { "url": "http://public2.vulnerablecode.io/api/packages/76048?format=api", "purl": "pkg:composer/typo3/cms-backend@8.7.40", "is_vulnerable": false, "affected_by_vulnerabilities": [], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:composer/typo3/cms-backend@8.7.40" }, { "url": "http://public2.vulnerablecode.io/api/packages/76049?format=api", "purl": "pkg:composer/typo3/cms-backend@9.5.25", "is_vulnerable": false, "affected_by_vulnerabilities": [], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:composer/typo3/cms-backend@9.5.25" }, { "url": "http://public2.vulnerablecode.io/api/packages/75911?format=api", "purl": "pkg:composer/typo3/cms-backend@10.4.14", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-716n-jhj7-ebhh" }, { "vulnerability": "VCID-uvfp-uq3t-6ffg" }, { "vulnerability": "VCID-ymvw-ev1y-8fa3" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:composer/typo3/cms-backend@10.4.14" }, { "url": "http://public2.vulnerablecode.io/api/packages/75912?format=api", "purl": "pkg:composer/typo3/cms-backend@11.1.1", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-716n-jhj7-ebhh" }, { "vulnerability": "VCID-uvfp-uq3t-6ffg" }, { "vulnerability": "VCID-ymvw-ev1y-8fa3" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:composer/typo3/cms-backend@11.1.1" } ], "aliases": [ "CVE-2021-21370", "GHSA-x7hc-x7fm-f7qh" ], "risk_score": 3.1, "exploitability": "0.5", "weighted_severity": "6.2", "resource_url": "http://public2.vulnerablecode.io/vulnerabilities/VCID-t3jn-vwbx-u7cr" } ], "fixing_vulnerabilities": [], "risk_score": "3.1", "resource_url": "http://public2.vulnerablecode.io/packages/pkg:composer/typo3/cms-backend@8.7.39" }